Mahmood Peshimam, M.D.
NPI 1801950498 · Family Medicine Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mahmood Peshimam, M.D. is a Family Medicine Physician provider in Fountain Valley, CA (NPI 1801950498).
Provider details
- NPI number
- 1801950498
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A36540 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
504 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 215 | $138 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 123 | $99 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 50 | $16 |
| Administration of Hepatitis B VaccineG0010 | 50 | $34 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 45 | $194 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 100 | 92 |
| Atorvastatin Calcium | 90 | 27 |
| Metformin Hcl | 63 | 20 |
| Losartan Potassium | 46 | 15 |
| Atovaquone/Proguanil Hclbrand: Atovaquone-Proguanil Hcl | 43 | 43 |
| Tamsulosin Hcl | 42 | 13 |
| Lisinopril | 38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-20
- Last updated
- 2008-05-20
Frequently asked questions
- What is Mahmood Peshimam's NPI number?
- Mahmood Peshimam's National Provider Identifier (NPI) is 1801950498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mahmood Peshimam's specialty?
- Mahmood Peshimam is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mahmood Peshimam located?
- Mahmood Peshimam's practice location on file with NPPES is 10900 Warner Ave, Fountain Valley, CA 92708-3846.
- What is Mahmood Peshimam's phone number?
- The practice phone number listed in the NPPES registry for Mahmood Peshimam is (714) 968-8600.
- Does Mahmood Peshimam accept Medicare?
- Mahmood Peshimam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mahmood Peshimam's NPI active?
- Yes — Mahmood Peshimam's NPI (1801950498) is active in the NPPES registry as of the last update on 2008-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.