NPPES file of Aug 9, 2026

Joshua Waitzman, M.D., PH.D.

Nephrology Physician · Boston, MA

Joshua Waitzman, M.D., PH.D. is a nephrology physician with a practice address in Boston, Massachusetts, and NPI 1740679414, issued on Jan 17, 2015. Check the license (Massachusetts 297197, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740679414
Name
Joshua Waitzman
Credential
M.D., PH.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
297197 MA
279197 MA
125 066440 IL
Self-reported in NPPES; status is on the state search
Practice location
171 Pilgrim RD # Libby2, Boston, MA 02215
Phone
(617) 632-9896
Enumerated
Jan 17, 2015
Record last updated
Nov 17, 2022
Medicare enrollment
Enrolled (PECOS I20210616001763); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Joshua Waitzman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 297197
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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33% fewer Medicare Part D claims than the average nephrology physician in 2024

981 Medicare Part D claims for 95 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Joshua Waitzman981
  2. Specialty average1,465

Most prescribed

  1. Jardiance228 claims
  2. Chlorthalidone61 claims
  3. Farxiga58 claims
  4. Amlodipine-Olmesartan55 claims
  5. Ozempic49 claims
  6. Spironolactone42 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

  1. Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nephrology Physician providers in Massachusetts

There are 417 nephrology physician records in Massachusetts.

Other nephrology physician records in Massachusetts

  1. Amtul Aala, MDBoston, MA1174946347
  2. Reza Abdi, MDBoston, MA1356359368
  3. Marat Abdullin, M.D.Springfield, MA1619159712
  4. Vivian AbernethyBoston, MA1710960232
  5. Rekha Abichandani, M.D.Cambridge, MA1912033598
  6. Konstantin Abramov, M.D.Worcester, MA1992854707
  7. Krishna Agarwal, M.B.B.S.Springfield, MA1477916120
  8. Nikhil AgrawalBoston, MA1467722579
  9. Ayman Al Jurdi, M.D.Boston, MA1043690332
  10. Laith Al Rabadi, M.D.Boston, MA1821309188

Common questions

What is Joshua Waitzman, M.D., PH.D.'s NPI number?

Joshua Waitzman, M.D., PH.D.'s National Provider Identifier (NPI) is 1740679414, issued on Jan 17, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Joshua Waitzman, M.D., PH.D. located?

The NPPES record lists a practice address at 171 Pilgrim RD # Libby2, Boston, MA, 02215. Phone: (617) 632-9896. Providers update this record themselves, so call before visiting.

How can I verify Joshua Waitzman, M.D., PH.D.'s license?

NPPES lists Massachusetts license number 297197, 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 Joshua Waitzman, M.D., PH.D. prescribe under Medicare Part D?

In 2024, Joshua Waitzman, M.D., PH.D. had 981 Medicare Part D claims for 95 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.