Michael Griffin, DNP, CRNA
NPI 1740803774 · Certified Registered Nurse Anesthetist · Portland, ME
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Griffin, DNP, CRNA is a Certified Registered Nurse Anesthetist provider in Portland, ME (NPI 1740803774).
Provider details
- NPI number
- 1740803774
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, CRNA
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1-136755 (AL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
5 documented practice locations
- 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (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
Additional practice locations (4)
- 1813 6th Ave SBirmingham, AL 35233-1920Phone: (205) 934-4011
- 1 Medical Center DrBiddeford, ME 04005-9422Phone: (207) 283-7042Fax: (207) 283-7047
- 25 June StSanford, ME 04073-2621Phone: (207) 490-7450Fax: (207) 490-7452
- 84 Campus DrScarborough, ME 04074-7133Phone: (207) 396-7000
Registry dates
- Enumerated
- 2020-05-26
- Last updated
- 2025-03-31
- Certified
- 2025-03-31
Frequently asked questions
- What is Michael Griffin's NPI number?
- Michael Griffin's National Provider Identifier (NPI) is 1740803774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Griffin's specialty?
- Michael Griffin is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michael Griffin located?
- Michael Griffin's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3134.
- What is Michael Griffin's phone number?
- The practice phone number listed in the NPPES registry for Michael Griffin is (207) 662-2526.
- Does Michael Griffin accept Medicare?
- Michael Griffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Griffin's NPI active?
- Yes — Michael Griffin's NPI (1740803774) is active in the NPPES registry as of the last update on 2025-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.