Catherine Marie Grams, NP
Acute Care Nurse Practitioner · Portland, ME
Catherine Marie Grams, NP is an acute care nurse practitioner with a practice address in Portland, Maine, and NPI 1356658462, issued on Sep 10, 2010. Check the license (Maine CNP241578, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Marie Grams
- Credential
- NP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License numbers
- CNP241578 ME
240420 MA
Self-reported in NPPES; status is on the state search - Practice location
- 22 Bramhall St, Portland, ME 04102
- Phone
- (207) 662-2526
- Enumerated
- Sep 10, 2010
- Record last updated
- Jan 29, 2025
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 167 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.
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- Joshua Abrams, PA-CSurgical Physician Assistant1932832128
- Christopher Abruzzese, D.OAnesthesiology Physician1558789305
- Haley Acker, PA-CPhysician Assistant1972167377
Verify Catherine Marie Grams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license CNP241578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
68 Medicare Part D claims for 46 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Oxycodone Hcl28 claims
- Amoxicillin-Clavulanate Potass11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Catherine Marie Grams among 167 acute care nurse practitioner records in Maine
Catherine Marie Grams, NP is one of 167 acute care nurse practitioner records with a practice address in Maine. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 9% of them.
- NPI issued2010 · 9% of these records are older, 88% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2025 · 23% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Maine
There are 167 acute care nurse practitioner records in Maine.
All 167 in Maine → Every provider in Portland → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Angela Amano, NPPortland, ME 041021720313232
- Erin Bacon, AGACNPPortland, ME 041021760729057
- Kristen Bell, NPPortland, ME 041021265786511
- Meghan Botler, ACNPPortland, ME 041021922375864
- Mary Brennan, APRN-BCPortland, ME 041021699782623
- Courtney Chartrand, NPPortland, ME 041021821391947
- Ashley Geller, NPPortland, ME 041021588928212
- Vera Komisarjevsky, ACNPPortland, ME 041021194714568
Common questions
What is Catherine Marie Grams, NP's NPI number?
Catherine Marie Grams, NP's National Provider Identifier (NPI) is 1356658462, issued on Sep 10, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Marie Grams, NP 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 Catherine Marie Grams, NP's license?
NPPES lists Maine license number CNP241578, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Marie Grams, NP prescribe under Medicare Part D?
In 2024, Catherine Marie Grams, NP had 68 Medicare Part D claims for 46 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions 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.