Mary C. Clancy, NP
Adult Health Nurse Practitioner · Boston, MA
Mary C. Clancy, NP is an adult health nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1891743746, issued on May 4, 2006. Check the license (Massachusetts RN156929, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary C. Clancy
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- RN156929 MA
Self-reported in NPPES; status is on the state search - Practice location
- 88 E Newton St, Boston, MA 02118
- Phone
- (617) 638-8605
- Enumerated
- May 4, 2006
- Record last updated
- Oct 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,465 in Massachusetts → Look up another NPI →
Also registered at 88 E Newton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary C. Clancy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN156929Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
28 Medicare Part D claims for 12 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Albuterol Sulfate Hfa11 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.
Mary C. Clancy among 1,465 adult health nurse practitioner records in Massachusetts
Mary C. Clancy, NP is one of 1,465 adult health nurse practitioner records with a practice address in Massachusetts. 61% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 73% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2017 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
454 adult health nurse practitioner records list a practice address in Boston
They are 454 of the 41,865 NPPES records with a practice address in Boston, and 1,465 adult health nurse practitioner records in Massachusetts.
All 1,465 in Massachusetts → Every provider in Boston → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Kara Allen, NURSE PRACTITIONERBoston, MA 021181699797415
- Antonieta Camara, NPBoston, MA 021181225014749
- Kimberly Chagnon, NPBoston, MA 021181275509325
- Mary Collier, NPBoston, MA 021181154312825
- Terry Davies, NPBoston, MA 021181174596506
- Jean-Marie Delva, N.P.Boston, MA 021181295744746
- Arlene Dermovsesian, N.P.Boston, MA 021181720050883
- Mary Glover, N.P.Boston, MA 021181538136338
Common questions
What is Mary C. Clancy, NP's NPI number?
Mary C. Clancy, NP's National Provider Identifier (NPI) is 1891743746, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary C. Clancy, NP located?
The NPPES record lists a practice address at 88 E Newton St, Boston, MA, 02118. Phone: (617) 638-8605. Providers update this record themselves, so call before visiting.
How can I verify Mary C. Clancy, NP's license?
NPPES lists Massachusetts license number RN156929, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Mary C. Clancy, NP prescribe under Medicare Part D?
In 2024, Mary C. Clancy, NP had 28 Medicare Part D claims for 12 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.