Irfan Hassen, M.D.
NPI 1073538849 · Family Medicine Physician · Frederick, MD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irfan Hassen, M.D. is a Family Medicine Physician provider in Frederick, MD (NPI 1073538849).
Provider details
- NPI number
- 1073538849
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0034303 (MD)
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
137 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 | 113 | $128 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 24 | $129 |
Typical Medicare-allowed amounts for these services range $128–$129 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan/Hydrochlorothiazidebrand: Losartan-Hydrochlorothiazide | 64 | 20 |
| Amlodipine Besylate | 56 | 16 |
| Levothyroxine Sodium | 53 | 14 |
| Atorvastatin Calcium | 48 | 15 |
| Metformin Hcl | 45 | 14 |
| Rosuvastatin Calcium | 38 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$162 across 3 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
- 2006-07-13
- Last updated
- 2010-11-30
Frequently asked questions
- What is Irfan Hassen's NPI number?
- Irfan Hassen's National Provider Identifier (NPI) is 1073538849, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irfan Hassen's specialty?
- Irfan Hassen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Irfan Hassen located?
- Irfan Hassen's practice location on file with NPPES is 801 Toll House Ave, Frederick, MD 21701-4564.
- What is Irfan Hassen's phone number?
- The practice phone number listed in the NPPES registry for Irfan Hassen is (301) 698-2604.
- Does Irfan Hassen accept Medicare?
- Irfan Hassen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irfan Hassen's NPI active?
- Yes — Irfan Hassen's NPI (1073538849) is active in the NPPES registry as of the last update on 2010-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.