Allen Fein, M.D.
NPI 1881672533 · Family Medicine Physician · Southampton, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allen Fein, M.D. is a Family Medicine Physician provider in Southampton, NY (NPI 1881672533).
Provider details
- NPI number
- 1881672533
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A2000404 (NY)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,137 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 | 425 | $150 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 339 | $19 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 119 | $106 |
| Testing for Presence of Drug, Read By Direct Observation80305 | 114 | $12 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 99 | $9 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 117 | 33 |
| Atorvastatin Calcium | 109 | 36 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 91 | — |
| Gabapentin | 64 | 12 |
| Hydrochlorothiazide | 50 | 15 |
| Lisinopril | 45 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$79 across 2 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
Additional practice locations (1)
- 205 Windmill LnSuite aSouthampton, NY 11968-4840Phone: (631) 283-6446Fax: (631) 283-9827
Registry dates
- Enumerated
- 2006-01-04
- Last updated
- 2018-06-20
Frequently asked questions
- What is Allen Fein's NPI number?
- Allen Fein's National Provider Identifier (NPI) is 1881672533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allen Fein's specialty?
- Allen Fein is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Allen Fein located?
- Allen Fein's practice location on file with NPPES is 365 County Road 39a Unit 11, Southampton, NY 11968.
- What is Allen Fein's phone number?
- The practice phone number listed in the NPPES registry for Allen Fein is (631) 283-6446.
- Does Allen Fein accept Medicare?
- Allen Fein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allen Fein's NPI active?
- Yes — Allen Fein's NPI (1881672533) is active in the NPPES registry as of the last update on 2018-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.