Jennifer J. Williams, CNM
Advanced Practice Midwife · Cambridge, MA
Jennifer J. Williams, CNM is an advanced practice midwife with a practice address in Cambridge, Massachusetts, and NPI 1245448166, issued on May 21, 2007. Check the license (Massachusetts RN281842, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jennifer J. Williams
- Credential
- CNM
- Primary taxonomy
- Advanced Practice Midwife 367A00000X
- License numbers
- RN281842 MA
CNM212007 ME
Self-reported in NPPES; status is on the state search - Practice location
- 330 Mount Auburn St, Cambridge, MA 02138
- Phone
- (617) 499-5151
- Enumerated
- May 21, 2007
- Record last updated
- Jan 22, 2026
- Medicaid ID
- 110081357A MA
- Entity
- Type 1 · individual
8 nearest advanced practice midwife records → All 454 in Massachusetts → Look up another NPI →
Also registered at 330 Mount Auburn St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jennifer J. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN281842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average advanced practice midwife in 2024
18 Medicare Part D claims, against an average of 72 among the 2,776 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Industry payments in 2024: $31.55
1 payment: food and beverage; the largest payer was Abbvie Inc. The 3,833 providers of this specialty with any payment received $204.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Jennifer J. Williams among 454 advanced practice midwife records in Massachusetts
Jennifer J. Williams, CNM is one of 454 advanced practice midwife records with a practice address in Massachusetts. 48% 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 35% of them.
- NPI issued2007 · 35% of these records are older, 50% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2026 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 advanced practice midwife records list a practice address in Cambridge
They are 44 of the 5,145 NPPES records with a practice address in Cambridge, and 454 advanced practice midwife records in Massachusetts.
All 454 in Massachusetts → Every provider in Cambridge → Advanced Practice Midwife nationwide →
The 8 advanced practice midwife records with the nearest ZIP codes
- Yasmeen Bruckner, CNMCambridge, MA 021381730563297
- Tierney Elison, CNMCambridge, MA 021381689226441
- Avery Fisher, CNMCambridge, MA 021381992223283
- Amy Goh, CNMCambridge, MA 021381710259163
- Zoey Gross, CNMCambridge, MA 021381649837477
- Janna Moreau, CNMCambridge, MA 021381659413482
- Jennifer Nelson, CNMCambridge, MA 021381245708973
- Mackenzie Powell, CNMCambridge, MA 021381679037204
Common questions
What is Jennifer J. Williams, CNM's NPI number?
Jennifer J. Williams, CNM's National Provider Identifier (NPI) is 1245448166, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer J. Williams, CNM located?
The NPPES record lists a practice address at 330 Mount Auburn St, Cambridge, MA, 02138. Phone: (617) 499-5151. Providers update this record themselves, so call before visiting.
How can I verify Jennifer J. Williams, CNM's license?
NPPES lists Massachusetts license number RN281842, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Jennifer J. Williams, CNM prescribe under Medicare Part D?
In 2024, Jennifer J. Williams, CNM had 18 Medicare Part D claims; the average among advanced practice midwife prescribers was 72. 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.