Mark Mittauer, MD
NPI 1255322996 · Psychiatry Physician · Groton, CT
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Mittauer, MD is a Psychiatry Physician provider in Groton, CT (NPI 1255322996).
Provider details
- NPI number
- 1255322996
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME48585 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Duloxetine Hcl | 22 |
| Lamotrigine | 17 |
| Escitalopram Oxalate | 16 |
| Trazodone Hcl | 16 |
| Alprazolam | 14 |
| Bupropion Hclbrand: Bupropion Xl | 14 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 13 |
| Clonidine Hcl | 13 |
| Divalproex Sodiumbrand: Divalproex Sodium Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,058 across 66 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-02
- Last updated
- 2015-06-03
Frequently asked questions
- What is Mark Mittauer's NPI number?
- Mark Mittauer's National Provider Identifier (NPI) is 1255322996, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Mittauer's specialty?
- Mark Mittauer is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Mittauer located?
- Mark Mittauer's practice location on file with NPPES is Rte 12 Bldg 449, Groton, CT 06349-5600.
- What is Mark Mittauer's phone number?
- The practice phone number listed in the NPPES registry for Mark Mittauer is (860) 694-2377.
- Does Mark Mittauer accept Medicare?
- Mark Mittauer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Mittauer's NPI active?
- Yes — Mark Mittauer's NPI (1255322996) is active in the NPPES registry as of the last update on 2015-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.