Katherine Friedman, NP
Nurse Practitioner · Oak Bluffs, MA
Katherine Friedman, NP is a nurse practitioner with a practice address in Oak Bluffs, Massachusetts, and NPI 1932302288, issued on Jun 6, 2007. Check the license (Massachusetts 228668, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Friedman
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 228668 MA
Self-reported in NPPES; status is on the state search - Practice location
- One Hospital RD, Oak Bluffs, MA 02557
- Phone
- (508) 693-0019
- Enumerated
- Jun 6, 2007
- Entity
- Type 1 · individual
Also registered at One Hospital RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Chase, C.N.M.Advanced Practice Midwife1073517025
- Casey Pedro, DMDDentist1245415124
Verify Katherine Friedman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 228668Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
65% more Medicare Part D claims than the average nurse practitioner in 2024
1,883 Medicare Part D claims for 397 beneficiaries, against an average of 1,144 among the 50,277 providers of this specialty who prescribed in Part D. 39 claims were for opioids.
Most prescribed
- Atorvastatin Calcium167 claims
- Lisinopril87 claims
- Amlodipine Besylate68 claims
- Levothyroxine Sodium64 claims
- Losartan Potassium49 claims
- Omeprazole37 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.
One hospital or facility affiliation
- Vineyard Medical Care LLCVineyard Haven, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
3 nurse practitioner records list a Oak Bluffs practice address
They are 3 of the 143 NPPES records with a Oak Bluffs practice address, and 3,234 nurse practitioner records in Massachusetts.
All 3 in Oak Bluffs → All 3,234 in Massachusetts → Every provider in Oak Bluffs →
Other nurse practitioner records in Massachusetts
- Carolyn Abbanat Villafane, NPBoston, MA1598810269
- Lisa Abbondanza, CNPFranklin, MA1770892630
- Fatima AbdallaMelrose, MA1326407529
- Erika AbeidFairhaven, MA1831084839
- Esayas Abraham, NPChelsea, MA1851275895
- Alissa AbrahamsonFramingham, MA1285434753
- Lauren Abric, CNPMilford, MA1235591447
- Amaka Achibiri, FNPWestwood, MA1932061736
- Jennifer Ackil, NPBoston, MA1730406398
- John AcordFairhaven, MA1013531086
Common questions
What is Katherine Friedman, NP's NPI number?
Katherine Friedman, NP's National Provider Identifier (NPI) is 1932302288, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Friedman, NP located?
The NPPES record lists a practice address at One Hospital RD, Oak Bluffs, MA, 02557. Phone: (508) 693-0019. Providers update this record themselves, so call before visiting.
How can I verify Katherine Friedman, NP's license?
NPPES lists Massachusetts license number 228668, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Friedman, NP prescribe under Medicare Part D?
In 2024, Katherine Friedman, NP had 1,883 Medicare Part D claims for 397 beneficiaries; the average among nurse practitioner prescribers was 1,144. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.