Mohammad Arain, M.D.
NPI 1639167158 · Internal Medicine Physician · Santa Maria, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mohammad Arain, M.D. is a Internal Medicine Physician provider in Santa Maria, CA (NPI 1639167158).
Provider details
- NPI number
- 1639167158
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A38905 (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
20 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
5,276 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 1,879 | $66 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,445 | $134 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 309 | $20 |
| Colorectal Cancer Screening; Fecal Occult Blood Test, Immunoassay, 1-3 SimultaneousG0328 | 293 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 290 | $135 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 290 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 537 | 144 |
| Amlodipine Besylate | 458 | 106 |
| Diclofenac Sodium | 347 | 95 |
| Levothyroxine Sodium | 283 | 73 |
| Metformin Hcl | 257 | 68 |
| Benazepril Hcl | 255 | 71 |
| Allopurinol | 243 | 58 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$201 across 11 records (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
- 2005-10-10
- Last updated
- 2020-04-08
- Certified
- 2020-04-08
Frequently asked questions
- What is Mohammad Arain's NPI number?
- Mohammad Arain's National Provider Identifier (NPI) is 1639167158, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mohammad Arain's specialty?
- Mohammad Arain is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mohammad Arain located?
- Mohammad Arain's practice location on file with NPPES is 1505 Shepard Dr, Santa Maria, CA 93454-7020.
- What is Mohammad Arain's phone number?
- The practice phone number listed in the NPPES registry for Mohammad Arain is (805) 928-2645.
- Does Mohammad Arain accept Medicare?
- Mohammad Arain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mohammad Arain's NPI active?
- Yes — Mohammad Arain's NPI (1639167158) is active in the NPPES registry as of the last update on 2020-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.