Katherine R. Friedman, NP
Nurse Practitioner · Oak Bluffs, MA
Katherine R. 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 R. 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
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (508) 693-3600
- Medicare enrollment
- Enrolled (PECOS I20051107000864); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
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 R. 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
70% 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 1,109 among the 54,319 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.
Bills Medicare through one group practice
- Vineyard Medical Care LLCVineyard Haven, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine R. Friedman among 3,480 nurse practitioner records in Massachusetts
Katherine R. Friedman, NP is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 22% of them.
- NPI issued2007 · 22% of these records are older, 69% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1998 · median 2017 among the 1,963 with a school on file
- Record last updated2007 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 nurse practitioner records list a practice address in Oak Bluffs
They are 4 of the 143 NPPES records with a practice address in Oak Bluffs, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Oak Bluffs → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Linsay BumilaOak Bluffs, MA 025571659906444
- Paula Karol, NPOak Bluffs, MA 025571508834391
- Nancy Phillips, NPOak Bluffs, MA 025571780640771
- Courtney Dipaolo Whelan, GNPNorth Falmouth, MA 025561275867038
- Myles Shepherd, MSN, ACNPC-AGNorth Falmouth, MA 025561275208225
- Karen Smith Rohrberg, MSN FNPN Falmouth, MA 025561194815597
- Audrey Tobin, NPN Falmouth, MA 025561184836405
- Mary Arsenault, NPNantucket, MA 025541881898807
Common questions
What is Katherine R. Friedman, NP's NPI number?
Katherine R. 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 R. 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 R. 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 R. Friedman, NP prescribe under Medicare Part D?
In 2024, Katherine R. Friedman, NP had 1,883 Medicare Part D claims for 397 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.