Alison O'Brien, DO
NPI 1548604093 · Internal Medicine Physician · Rochester, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alison O'Brien, DO is a Internal Medicine Physician provider in Rochester, NY (NPI 1548604093).
Provider details
- NPI number
- 1548604093
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 287391 (NY)
Specialties & taxonomies
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 tenure28% of score
13 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
59 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 29 | $94 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 16 | $124 |
| 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 | 14 | $16 |
Typical Medicare-allowed amounts for these services range $16–$124 (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 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 278 | 77 |
| Hydrochlorothiazide | 130 | 40 |
| Levothyroxine Sodium | 121 | 32 |
| Gabapentin | 103 | 32 |
| Amlodipine Besylate | 94 | 30 |
| Omeprazole | 89 | 26 |
| Lisinopril | 88 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-25
- Last updated
- 2023-06-29
- Certified
- 2021-04-15
Frequently asked questions
- What is Alison O'Brien's NPI number?
- Alison O'Brien's National Provider Identifier (NPI) is 1548604093, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alison O'Brien's specialty?
- Alison O'Brien is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alison O'Brien located?
- Alison O'Brien's practice location on file with NPPES is 60 Greece Center Dr Ste 4, Rochester, NY 14612-1358.
- What is Alison O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Alison O'Brien is (585) 602-0100.
- Does Alison O'Brien accept Medicare?
- Alison O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alison O'Brien's NPI active?
- Yes — Alison O'Brien's NPI (1548604093) is active in the NPPES registry as of the last update on 2023-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.