Timothy Holahan, MD
NPI 1346483930 · Geriatric Medicine (Internal Medicine) Physician · Rochester, NY
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Holahan, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Rochester, NY (NPI 1346483930).
Provider details
- NPI number
- 1346483930
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 270286 (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
17 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
379 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 109 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 95 | $114 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 79 | $103 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 23 | $72 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 23 | $102 |
| Hospital Discharge Day Management, 30 Minutes Or Less |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 147 | 18 |
| Mirtazapine | 98 | 13 |
| Gabapentin | 92 | — |
| Trazodone Hcl | 83 | 11 |
| Levothyroxine Sodium | 83 | 12 |
| Torsemide | 80 | — |
| Amlodipine Besylate | 79 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-04-12
- Last updated
- 2024-08-23
- Certified
- 2024-08-23
Frequently asked questions
- What is Timothy Holahan's NPI number?
- Timothy Holahan's National Provider Identifier (NPI) is 1346483930, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Holahan's specialty?
- Timothy Holahan is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Holahan located?
- Timothy Holahan's practice location on file with NPPES is 1000 South Ave # 58, Rochester, NY 14620-2733.
- What is Timothy Holahan's phone number?
- The practice phone number listed in the NPPES registry for Timothy Holahan is (585) 341-0456.
- Does Timothy Holahan accept Medicare?
- Timothy Holahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Holahan's NPI active?
- Yes — Timothy Holahan's NPI (1346483930) is active in the NPPES registry as of the last update on 2024-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.