Dr. Abigail Nisan
- Gender: Female
- Experience: 13 years
- Graduation year: 2008
- Sole propriator: No
- NPI: 1336445956
Dr. Abigail Nisan MD
Internist
She is located at 120 East Harris Avenue in San Angelo, TX 76903. Can help patients with the following: Atherosclerosis, Cholecystitis, Chronic Obstructive Pulmonary Disease (COPD), High Blood Pressure, Influenza, Migraine. Her National Provider Identifier (NPI) number is 1336445956. Appointment can be made via the phone number (325) 653-6741. She is affiliated with 1 practices and 4 hospitals.
Conditions treated
Dr. Abigail Nisan, being an internist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Abigail Nisan.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Abigail Nisan as in-network for the following 2026 plans.
Health plans
Ambetter from Superior HealthPlan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 12 plans from Ambetter from Superior HealthPlan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options | EPO · Silver | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Gold | EPO · Gold | Preferred | Accepting new patients |
| Everyday Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
Baylor Scott and White Health Plan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 10 plans from Baylor Scott and White Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BSW Diabetes Care Gold HMO 014 | HMO · Gold | Bswpremierhmo | Accepting new patients |
| BSW Elite Gold HMO 001 (CMS Standardized Plan with $0 Pediatric PCP copay) | HMO · Gold | Bswpremierhmo | Accepting new patients |
| BSW Elite Gold HMO 004 | HMO · Gold | Bswpremierhmo | Accepting new patients |
| BSW Elite Gold HMO 012 | HMO · Gold | Bswpremierhmo | Accepting new patients |
| BSW Prime Silver HMO 003 (CMS Standardized Plan with $0 Pediatric PCP copay) | HMO · Silver | Bswpremierhmo | Accepting new patients |
| BSW Prime Silver HMO 008 | HMO · Silver | Bswpremierhmo | Accepting new patients |
| BSW Prime Silver HMO 005 | HMO · Silver | Bswpremierhmo | Accepting new patients |
| BSW Savers Bronze HMO H S A 006 | HMO · Expanded Bronze | Bswpremierhmo | Accepting new patients |
| BSW Savers Bronze HMO H S A 007 (CMS Standardized Plan with $0 Pediatric PCP copay) | HMO · Expanded Bronze | Bswpremierhmo | Accepting new patients |
| BSW Savers Bronze HMO H S A 009 | HMO · Expanded Bronze | Bswpremierhmo | Accepting new patients |
Blue Cross and Blue Shield of Texas
Network data as of Jun 7, 2026, as reported by the insurer.
Show all 19 plans from Blue Cross and Blue Shield of Texas
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Advantage Bronze HMO℠ 204 (27 plan variants) | HMO · Expanded Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Bronze HMO℠ 301 (14 plan variants) | HMO · Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Bronze HMO℠ Standard (27 plan variants) | HMO · Expanded Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Gold HMO℠ 206 (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Gold HMO℠ 603 (14 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Gold HMO℠ Standard (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Bronze℠ 303 (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Bronze℠ 305 (27 plan variants) | POS · Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Bronze℠ Standard (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Gold℠ 203 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Gold℠ 803 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Gold℠ Standard (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Silver℠ 202 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Silver℠ 605 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Silver℠ Standard (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Security HMO℠ 200 (27 plan variants) | HMO · Catastrophic | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Silver HMO℠ 205 (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Silver HMO℠ 801 (14 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Silver HMO℠ Standard (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients at some locations |
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 11 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Gold Classic Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Classic Standard Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple Diabetes Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Abigail Nisan is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Abigail Nisan is enrolled to bill Medicare as a Practitioner - Internal Medicine .
Bills through: Shannon Clinic
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| The Medicines Company | $38 |
| E.R. Squibb \u0026 Sons | $37 |
| AstraZeneca | $32 |
Other
| Food and Beverage | $164 |
Studies
Graduated in 2008
Affiliated hospitals
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Questions & Answers
Where can you meet with Dr. Abigail Nisan?
Dr. Abigail Nisan's office is located at 120 East Harris Avenue in San Angelo, TX 76903.
Has Dr. Abigail Nisan affiliation with hospitals?
Dr. Abigail Nisan is affiliated with SHANNON MEDICAL CENTER. For the full list of hospitals see this list.
What conditions does Dr. Abigail Nisan treat?
Dr. Abigail Nisan provides treatment for Atherosclerosis, Cholecystitis, Chronic Obstructive Pulmonary Disease (COPD), High Blood Pressure, Influenza, Migraine. For the full list see this list.
Does Dr. Abigail Nisan have affiliation with practices?
Dr. Abigail Nisan is affiliated with Shannon Clinic.
Does Dr. Abigail Nisan accept insurance?
Dr. Abigail Nisan is listed in-network for 52 ACA Marketplace (Obamacare/HealthCare.gov) plans from Ambetter from Superior HealthPlan, Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Oscar Insurance Company. See the Marketplace plans section for details.