Andrew Halsdorfer, DO
NPI 1376500157 · Family Medicine Physician · Williamsville, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Halsdorfer, DO is a Family Medicine Physician provider in Williamsville, NY (NPI 1376500157).
Provider details
- NPI number
- 1376500157
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 221778-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
814 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 87 | $13 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 86 | $122 |
| 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 | 80 | $16 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 77 | $10 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $122 |
| Blood Test, Thyroid Stimulating Hormone (tsh) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 771 | 207 |
| Amlodipine Besylate | 557 | 131 |
| Levothyroxine Sodium | 424 | 84 |
| Irbesartan | 326 | 83 |
| Rosuvastatin Calcium | 295 | 80 |
| Lisinopril | 258 | 65 |
| Omeprazole | 210 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-27
- Last updated
- 2021-12-13
- Certified
- 2021-12-13
Frequently asked questions
- What is Andrew Halsdorfer's NPI number?
- Andrew Halsdorfer's National Provider Identifier (NPI) is 1376500157, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Halsdorfer's specialty?
- Andrew Halsdorfer is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Halsdorfer located?
- Andrew Halsdorfer's practice location on file with NPPES is 325 Essjay Rd, Williamsville, NY 14221-8243.
- What is Andrew Halsdorfer's phone number?
- The practice phone number listed in the NPPES registry for Andrew Halsdorfer is (716) 630-1017.
- Does Andrew Halsdorfer accept Medicare?
- Andrew Halsdorfer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Halsdorfer's NPI active?
- Yes — Andrew Halsdorfer's NPI (1376500157) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.