Kamau Karanja
Family Medicine Physician · Waltham, MA
Kamau Karanja is a family medicine physician with a practice address in Waltham, Massachusetts, and NPI 1720147895, issued on Dec 6, 2006. Check the license (Massachusetts 160304, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kamau Karanja
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 160304 MA
Self-reported in NPPES; status is on the state search - Practice location
- 564 Main St, Waltham, MA 02452
- Phone
- (781) 693-3800
- Enumerated
- Dec 6, 2006
- Record last updated
- Mar 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050830000416); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
Also registered at 564 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ilana AmbrogiFamily Medicine Physician1720346737
- Dominique Auger, DPTPhysical Therapist1063067916
- Jessica Bonchi, DPTPhysical Therapist1639695653
- Lori Caddoo, MSPTPhysical Therapist1275608259
- Mark Drews, MDInternal Medicine Physician1184693616
- Margaret Duddy, APRNFamily Nurse Practitioner1528342193
Verify Kamau Karanja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 160304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average family medicine physician in 2024
814 Medicare Part D claims for 120 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium75 claims
- Amlodipine Besylate65 claims
- Lisinopril60 claims
- Finasteride31 claims
- Omeprazole25 claims
- Hydrochlorothiazide21 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
- Massachusetts Institute OF TechnologyCambridge, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kamau Karanja among 2,265 family medicine physician records in Massachusetts
Kamau Karanja is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 55% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1994 · median 2006 among the 1,529 with a school on file
- Record last updated2011 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Massachusetts
There are 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Waltham → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ilana AmbrogiWaltham, MA 024521720346737
- Julie Caruth, M.D.Waltham, MA 024521659470839
- Felice Meadow, D.O.Waltham, MA 024521457326993
- Ekaterina Brodski-Quigley, M.D.Waltham, MA 024511821254046
- Alicia Czarnecki, MDWaltham, MA 024531235110107
- Wendy Gaines, MDWaltham, MA 024531114997970
- Teryn Gorgone, NPWaltham, MA 024511992157176
- John Hackett, MDWaltham, MA 024531518059401
Common questions
What is Kamau Karanja's NPI number?
Kamau Karanja's National Provider Identifier (NPI) is 1720147895, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kamau Karanja located?
The NPPES record lists a practice address at 564 Main St, Waltham, MA, 02452. Phone: (781) 693-3800. Providers update this record themselves, so call before visiting.
How can I verify Kamau Karanja's license?
NPPES lists Massachusetts license number 160304, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kamau Karanja prescribe under Medicare Part D?
In 2024, Kamau Karanja had 814 Medicare Part D claims for 120 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.