NPPES file of Aug 9, 2026

Chana S. Wasserman, MD

Obstetrics Physician · Cambridge, MA

Chana S. Wasserman, MD is an obstetrics physician with a practice address in Cambridge, Massachusetts, and NPI 1336112291, issued on Feb 10, 2006. Check the license (Massachusetts 154463, 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
1336112291
Name
Chana S. Wasserman
Credential
MD
Primary taxonomy
Obstetrics Physician 207VX0000X
License number
154463 MA
Self-reported in NPPES; status is on the state search
Practice location
77 Mass Ave, Cambridge, MA 02139
Phone
(617) 253-0556
Enumerated
Feb 10, 2006
Record last updated
Apr 17, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040617000582); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 1993
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.
Download card Updates feed

Also registered at 77 Mass Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Patricia Bartels, APRN,BCFamily Nurse Practitioner1306818380
  2. Audra Bartz, LICSWClinical Social Worker1497720528
  3. Sherry Bauman, MDPsychiatry Physician1023082708
  4. M. Bosley, MS RNCSPsychiatric/Mental Health Clinical Nurse Specialist1801861943
  5. Eileen Cecca, RN CSFamily Nurse Practitioner1356316400
  6. Richard Gardner, MDGastroenterology Physician1851381420

Verify Chana S. Wasserman 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 154463
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

56% fewer Medicare Part D claims than the average obstetrics physician in 2024

97 Medicare Part D claims for 35 beneficiaries, against an average of 218 among the 863 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Chana Wasserman97
  2. Specialty average218

Most prescribed

  1. Estring28 claims
  2. Estradiol20 claims
  3. Yuvafem20 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. Massachusetts Institute OF TechnologyCambridge, MA

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

Chana S. Wasserman among 25 obstetrics physician records in Massachusetts

Chana S. Wasserman, MD is one of 25 obstetrics physician records with a practice address in Massachusetts. 56% 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 24% of them.

  • NPI issued2006 · 24% of these records are older, 52% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1993 · median 2008 among the 12 with a school on file
  • Record last updated2012 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in Massachusetts

There are 25 obstetrics physician records in Massachusetts.

The 8 obstetrics physician records with the nearest ZIP codes

  1. Madelyn Conner, MDBoston, MA 021181316684475
  2. Radhika Datar, MDBoston, MA 021181366753642
  3. Adrian Chiem, MDBoston, MA 021151508445248
  4. Lisa Haddad, M.D.Boston, MA 021151285789545
  5. Emma PattersonBoston, MA 021111275425365
  6. Alison VogellBoston, MA 021111598909269
  7. Janelle Murphy, NPWeymouth, MA 021891457688756
  8. Jonathan Friedes, MDBoston, MA 022151780606160

Common questions

What is Chana S. Wasserman, MD's NPI number?

Chana S. Wasserman, MD's National Provider Identifier (NPI) is 1336112291, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chana S. Wasserman, MD located?

The NPPES record lists a practice address at 77 Mass Ave, Cambridge, MA, 02139. Phone: (617) 253-0556. Providers update this record themselves, so call before visiting.

How can I verify Chana S. Wasserman, MD's license?

NPPES lists Massachusetts license number 154463, 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 Chana S. Wasserman, MD prescribe under Medicare Part D?

In 2024, Chana S. Wasserman, MD had 97 Medicare Part D claims for 35 beneficiaries; the average among obstetrics physician prescribers was 218. 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.