Michael Gratkowski, RN
NPI 1346609013 · Psychiatric/Mental Health Registered Nurse · Manchester, NH
Michael Gratkowski, RN is a Psychiatric/Mental Health Registered Nurse provider in Manchester, NH (NPI 1346609013).
Provider details
- NPI number
- 1346609013
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 073065-21 (NH)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-02-23
- Last updated
- 2016-02-23
Frequently asked questions
- What is Michael Gratkowski's NPI number?
- Michael Gratkowski's National Provider Identifier (NPI) is 1346609013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Gratkowski's specialty?
- Michael Gratkowski is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Michael Gratkowski located?
- Michael Gratkowski's practice location on file with NPPES is 1555 Elm St, Manchester, NH 03101-1203.
- What is Michael Gratkowski's phone number?
- The practice phone number listed in the NPPES registry for Michael Gratkowski is (603) 668-4111.
- Is Michael Gratkowski's NPI active?
- Yes — Michael Gratkowski's NPI (1346609013) is active in the NPPES registry as of the last update on 2016-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.