Hassan Nasir, D.O.
NPI 1376771626 · Allergy & Immunology Physician · Gladwin, MI
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hassan Nasir, D.O. is a Allergy & Immunology Physician provider in Gladwin, MI (NPI 1376771626).
Provider details
- NPI number
- 1376771626
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5101018446 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 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
246 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 63 | $114 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 59 | $152 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 35 | $85 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 19 | $64 |
Typical Medicare-allowed amounts for these services range $64–$152 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 111 | 36 |
| Prednisone | 100 | 58 |
| Adalimumabbrand: Humira Pen | 86 | 23 |
| Montelukast Sodium | 58 | 20 |
| Methotrexate Sodiumbrand: Methotrexate | 47 | 22 |
| Levocetirizine Dihydrochloride | 46 | 18 |
| Tezepelumab-Ekko |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$87,623 across 215 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
- 2009-06-25
- Last updated
- 2026-03-16
- Certified
- 2026-03-16
Frequently asked questions
- What is Hassan Nasir's NPI number?
- Hassan Nasir's National Provider Identifier (NPI) is 1376771626, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hassan Nasir's specialty?
- Hassan Nasir is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Hassan Nasir located?
- Hassan Nasir's practice location on file with NPPES is 1277 E Cedar Ave, Gladwin, MI 48624-7004.
- What is Hassan Nasir's phone number?
- The practice phone number listed in the NPPES registry for Hassan Nasir is (989) 343-5037.
- Does Hassan Nasir accept Medicare?
- Hassan Nasir is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hassan Nasir's NPI active?
- Yes — Hassan Nasir's NPI (1376771626) is active in the NPPES registry as of the last update on 2026-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.