Humayun Abbas, MD
NPI 1336136548 · Internal Medicine Physician · Modesto, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Humayun Abbas, MD is a Internal Medicine Physician provider in Modesto, CA (NPI 1336136548).
Provider details
- NPI number
- 1336136548
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A68455 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,910 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,014 | $129 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 211 | $132 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 171 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 155 | $182 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 76 | $67 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 200 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 794 | 230 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 722 | 143 |
| Amlodipine Besylate | 567 | 157 |
| Omeprazole | 436 | 119 |
| Gabapentin | 424 | 99 |
| Lisinopril | 422 | 117 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-03
- Last updated
- 2011-03-29
Frequently asked questions
- What is Humayun Abbas's NPI number?
- Humayun Abbas's National Provider Identifier (NPI) is 1336136548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Humayun Abbas's specialty?
- Humayun Abbas is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Humayun Abbas located?
- Humayun Abbas's practice location on file with NPPES is 1541 Florida Ave, Modesto, CA 95350-4429.
- What is Humayun Abbas's phone number?
- The practice phone number listed in the NPPES registry for Humayun Abbas is (209) 577-3388.
- Does Humayun Abbas accept Medicare?
- Humayun Abbas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Humayun Abbas's NPI active?
- Yes — Humayun Abbas's NPI (1336136548) is active in the NPPES registry as of the last update on 2011-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.