Registry data as of Aug 27, 2026

Sara Callahan, FNP

Family Nurse Practitioner · Charlestown, MA

Sara Callahan, FNP is a family nurse practitioner with a practice address in Charlestown, Massachusetts, and NPI 1942722533, issued on Jul 14, 2017. Check the license (Massachusetts 2282855, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1942722533
Name
Sara Callahan
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
2282855 MA
Self-reported in NPPES; status is on the state search
Practice location
73 High St, Charlestown, MA 02129
Phone
(617) 724-8135
Enumerated
Jul 14, 2017
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 73 High St

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

  1. Quinn Almerico-Leclair, LICSWClinical Social Worker1902158173
  2. Chelsea AtzingerClinical Social Worker1093452187
  3. Christina Biagiotti, P.T.Physical Therapist1942337704
  4. Robin BleicherClinical Social Worker1104717289
  5. Tiara Calhoun, MDPulmonary Disease Physician1902326101
  6. Jorge CardonaClinical Social Worker1174130330

Verify Sara Callahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 2282855
    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
Find 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.

73% fewer Medicare Part D claims than the average family nurse practitioner in 2024

352 Medicare Part D claims for 230 beneficiaries, against an average of 1,302 among the 128,048 providers of this specialty who prescribed in Part D.

  1. Sara Callahan352
  2. Specialty average1,302

Most prescribed

  1. Paxlovid61 claims
  2. Lisinopril21 claims
  3. Nitrofurantoin Mono-Macro21 claims
  4. Atorvastatin Calcium14 claims
  5. Mupirocin13 claims
  6. Amoxicillin-Clavulanate Potass11 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.

3 hospital and facility affiliations

  1. Mass General Brigham Medical Group Northern Massachusetts IncPeabody, MA
  2. Massachusetts General Physicians Organization IncBoston, MA
  3. The General Hospital CorporationWaltham, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

12 family nurse practitioner records list a Charlestown practice address

They are 12 of the 421 NPPES records with a Charlestown practice address, and 4,241 family nurse practitioner records in Massachusetts.

Other family nurse practitioner records in Massachusetts

  1. Christina Abate, N.P.Boston, MA1235414970
  2. Katelynne Abbott, NPDanvers, MA1932355880
  3. Georgette Abboud, FNP-CHanscom Afb, MA1538593686
  4. Irfana Abdulhameed, FNPNorthborough, MA1417661786
  5. Christine Abraham, NPSouthborough, MA1215774658
  6. Catherine Abrams, FNP-CNorth Dartmouth, MA1528790599
  7. Wendy Abrams, FNPBoston, MA1962557801
  8. Michelle Abreu, FNP-BCArlington, MA1346138914
  9. Karolyn Abreu Blanco, FNP-BCLawrence, MA1043007644
  10. Carleigh AbromovitzBoston, MA1861215261

Common questions

What is Sara Callahan, FNP's NPI number?

Sara Callahan, FNP's National Provider Identifier (NPI) is 1942722533, issued on Jul 14, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Sara Callahan, FNP located?

The NPPES record lists a practice address at 73 High St, Charlestown, MA, 02129. Phone: (617) 724-8135. Providers update this record themselves, so call before visiting.

How can I verify Sara Callahan, FNP's license?

NPPES lists Massachusetts license number 2282855, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Sara Callahan, FNP prescribe under Medicare Part D?

In 2024, Sara Callahan, FNP had 352 Medicare Part D claims for 230 beneficiaries; the average among family nurse practitioner prescribers was 1,302. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.