Michael Peter Griffin, DNP, CRNA
Certified Registered Nurse Anesthetist · Portland, ME
Michael Peter Griffin, DNP, CRNA is a certified registered nurse anesthetist with a practice address in Portland, Maine, and NPI 1740803774, issued on May 26, 2020. Check the license (Maine RNA253022, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Peter Griffin
- Credential
- DNP, CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License numbers
- RNA253022 ME
1-136755 AL
Self-reported in NPPES; status is on the state search - Practice location
- 22 Bramhall St, Portland, ME 04102
- Phone
- (207) 662-2526
- Enumerated
- May 26, 2020
- Record last updated
- Mar 31, 2025
- Fax
- (207) 662-6236
- Medicare enrollment
- Enrolled (PECOS I20250507002176); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 534 in Maine → Look up another NPI →
Also registered at 22 Bramhall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Abbatiello, NP-CFamily Nurse Practitioner1871811737
- Ruslan Abdukalikov, DOAnesthesiology Physician1831694793
- Tod Abrahams, M.D.Diagnostic Radiology Physician1538231642
- Joshua Abrams, PA-CSurgical Physician Assistant1932832128
- Christopher Abruzzese, D.OAnesthesiology Physician1558789305
- Haley Acker, PA-CPhysician Assistant1972167377
Verify Michael Peter Griffin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license RNA253022Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $19.37
1 payment: food and beverage; the largest payer was Chiesi USA, Inc. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- MainehealthPortland, ME
- University OF Alabama Health Services Foundation, PCBirmingham, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Peter Griffin among 534 certified registered nurse anesthetist records in Maine
Michael Peter Griffin, DNP, CRNA is one of 534 certified registered nurse anesthetist records with a practice address in Maine. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 81% of them.
- NPI issued2020 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2020 · median 2014 among the 395 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
232 certified registered nurse anesthetist records list a practice address in Portland
They are 232 of the 6,022 NPPES records with a practice address in Portland, and 534 certified registered nurse anesthetist records in Maine.
All 534 in Maine → Every provider in Portland → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Christopher Daggett, CRNAPortland, ME 041021619951787
- Paul Dionne, CRNAPortland, ME 041021528161312
- Karen Donovan, CRNAPortland, ME 041021487757282
- Shelly Fisher, CRNAPortland, ME 041021912952839
- Rex Huber, CRNAPortland, ME 041021023082831
- Anne Karczewski, CRNAPortland, ME 041021770534448
- Suzanne Maynard, CRNAPortland, ME 041021386641355
- Claire Miner, RN, BSN,CRNAPortland, ME 041021750324851
Common questions
What is Michael Peter Griffin, DNP, CRNA's NPI number?
Michael Peter Griffin, DNP, CRNA's National Provider Identifier (NPI) is 1740803774, issued on May 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Michael Peter Griffin, DNP, CRNA located?
The NPPES record lists a practice address at 22 Bramhall St, Portland, ME, 04102. Phone: (207) 662-2526. Providers update this record themselves, so call before visiting.
How can I verify Michael Peter Griffin, DNP, CRNA's license?
NPPES lists Maine license number RNA253022, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.