Niamh Holohan, MD
NPI 1902901283 · Psychiatry Physician · Bangor, ME
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Niamh Holohan, MD is a Psychiatry Physician provider in Bangor, ME (NPI 1902901283).
Provider details
- NPI number
- 1902901283
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD15459 (ME)
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
19 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
124 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) |
|---|---|---|
| Testing for Presence of Drug, Read By Direct Observation80305 | 39 | $12 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 29 | $10 |
| Hemoglobin A1c Level83036 | 22 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 17 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 17 | $16 |
Typical Medicare-allowed amounts for these services range $10–$16 (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 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Olanzapine | 313 | 32 |
| Lamotrigine | 212 | 43 |
| Quetiapine Fumarate | 203 | 28 |
| Lithium Carbonatebrand: Lithium Carbonate Er | 107 | 18 |
| Sertraline Hcl | 99 | 14 |
| Trazodone Hcl | 88 | 18 |
| Clonazepam | 85 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-13
- Last updated
- 2021-05-06
- Certified
- 2021-05-06
Frequently asked questions
- What is Niamh Holohan's NPI number?
- Niamh Holohan's National Provider Identifier (NPI) is 1902901283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Niamh Holohan's specialty?
- Niamh Holohan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Niamh Holohan located?
- Niamh Holohan's practice location on file with NPPES is 1012 Union St, Bangor, ME 04401.
- What is Niamh Holohan's phone number?
- The practice phone number listed in the NPPES registry for Niamh Holohan is (207) 945-5247.
- Does Niamh Holohan accept Medicare?
- Niamh Holohan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Niamh Holohan's NPI active?
- Yes — Niamh Holohan's NPI (1902901283) is active in the NPPES registry as of the last update on 2021-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.