NPPES file of Aug 9, 2026

Jaclyn Marie Kolosky, D.O.

Obstetrics & Gynecology Physician · Allston, MA

Jaclyn Marie Kolosky, D.O. is an obstetrics & gynecology physician with a practice address in Allston, Massachusetts, and NPI 1174941173, issued on Apr 7, 2014. Check the license (Massachusetts 274835, 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
1174941173
Name
Jaclyn Marie Kolosky
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
274835 MA
Self-reported in NPPES; status is on the state search
Practice location
226 Harvard Ave, Allston, MA 02134
Phone
(617) 751-5520
Enumerated
Apr 7, 2014
Record last updated
Jan 17, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20181127003156); accepts Medicare assignment
Medical or professional school
West Virginia School Of Osteopathic Medicine, 2014
Telehealth
Offers telehealth (CMS)
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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Also registered at 226 Harvard Ave

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

  1. Bryanna Ferreira, DPTPhysical Therapist1184584161
  2. Polyanna Neumann, APRNNurse Practitioner1548916604
  3. Takiera PettusBehavior Technician1407695091
  4. Lisha Wu, DPTPhysical Therapist1407657174

Verify Jaclyn Marie Kolosky 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 274835
    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.

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59% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

67 Medicare Part D claims for 37 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Jaclyn Kolosky67
  2. Specialty average165

Most prescribed

  1. Bromocriptine Mesylate13 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. Mass General Brigham Medical Group Northern Massachusetts IncSwampscott, MA

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

Jaclyn Marie Kolosky among 1,127 obstetrics & gynecology physician records in Massachusetts

Jaclyn Marie Kolosky, D.O. is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.

  • NPI issued2014 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2014 · median 2004 among the 715 with a school on file
  • Record last updated2019 · 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 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Massachusetts

There are 1,127 obstetrics & gynecology physician records in Massachusetts.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Enrique Testa, M.D.Boston, MA 021341598746356
  2. Kwame Amponsah, MDBrighton, MA 021351831416874
  3. Maureen Cook, MDBrighton, MA 021351982675872
  4. Joelle Lieman, MDBrighton, MA 021351033172275
  5. Jean Noel, M.D.Brighton, MA 021351548243892
  6. Karen Poley, MDBrighton, MA 021351477549368
  7. Diana Rodriguez, M.D.Brighton, MA 021351508849811
  8. Michael Steller, M.D.Brighton, MA 021351346236767

Common questions

What is Jaclyn Marie Kolosky, D.O.'s NPI number?

Jaclyn Marie Kolosky, D.O.'s National Provider Identifier (NPI) is 1174941173, issued on Apr 7, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Jaclyn Marie Kolosky, D.O. located?

The NPPES record lists a practice address at 226 Harvard Ave, Allston, MA, 02134. Phone: (617) 751-5520. Providers update this record themselves, so call before visiting.

How can I verify Jaclyn Marie Kolosky, D.O.'s license?

NPPES lists Massachusetts license number 274835, 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 Jaclyn Marie Kolosky, D.O. prescribe under Medicare Part D?

In 2024, Jaclyn Marie Kolosky, D.O. had 67 Medicare Part D claims for 37 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.