Anne Merra, MD
NPI 1831138874 · Psychiatry Physician · Portland, ME
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anne Merra, MD is a Psychiatry Physician provider in Portland, ME (NPI 1831138874).
Provider details
- NPI number
- 1831138874
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 76168 (MA)
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
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
592 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 | 193 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 125 | $93 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 103 | $62 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 67 | $63 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 29 | $164 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 182 | 33 |
| Clonazepam | 178 | 40 |
| Lorazepam | 169 | 47 |
| Sertraline Hcl | 149 | 43 |
| Quetiapine Fumarate | 148 | 34 |
| Bupropion Hclbrand: Bupropion Xl | 125 | 38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-05
- Last updated
- 2021-09-02
- Certified
- 2021-09-02
Frequently asked questions
- What is Anne Merra's NPI number?
- Anne Merra's National Provider Identifier (NPI) is 1831138874, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anne Merra's specialty?
- Anne Merra is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Anne Merra located?
- Anne Merra's practice location on file with NPPES is 66 Bramhall St, Portland, ME 04102-3344.
- What is Anne Merra's phone number?
- The practice phone number listed in the NPPES registry for Anne Merra is (207) 337-3257.
- Does Anne Merra accept Medicare?
- Anne Merra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anne Merra's NPI active?
- Yes — Anne Merra's NPI (1831138874) is active in the NPPES registry as of the last update on 2021-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.