NPPES file of Aug 9, 2026

Joanna Chrostowski, D.O.

Obstetrics & Gynecology Physician · Hillsborough, NJ

Joanna Chrostowski, D.O. is an obstetrics & gynecology physician with a practice address in Hillsborough, New Jersey, and NPI 1639628464, issued on Sep 21, 2016. Check the license (New Jersey 25MB10830200, as entered in NPPES) on the New Jersey State Board of Medical Examiners; 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
1639628464
Name
Joanna Chrostowski
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
25MB10830200 NJ
Self-reported in NPPES; status is on the state search
Practice location
331 US Highway 206 Ste 2F, Hillsborough, NJ 08844
Phone
(732) 427-8102
Enumerated
Sep 21, 2016
Record last updated
Aug 5, 2026
Medicare enrollment
Enrolled (PECOS I20200810000416); accepts Medicare assignment
Medical or professional school
New York College Of Osteo Medicine Of New York Institute Of Technology, 2016
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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8 nearest obstetrics & gynecology physician records → All 1,362 in New Jersey → Look up another NPI →

Also registered at 331 US Highway 206 Ste 2F

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

  1. Daniel Beim, M.D.Specialist1144302985
  2. Maureen Cernadas, MEDICAL DOCTORObstetrics & Gynecology Physician1427137066
  3. Nicole Davis, M.D.Gynecology Physician1528082484
  4. Lauren GoetschObstetrics & Gynecology Physician1336554377
  5. Michelle HuangObstetrics & Gynecology Physician1790084473
  6. Kristin Kinsler, D.O.Obstetrics & Gynecology Physician1538570833

Verify Joanna Chrostowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MB10830200    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 New Jersey license search

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64% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

59 Medicare Part D claims for 52 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Joanna Chrostowski59
  2. Specialty average165

Most prescribed

  1. Clotrimazole-Betamethasone12 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: $81.94

5 payments; by number, the most common kind was food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joanna Chrostowski$81.94
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Regional Womens Health Group LLCEast Brunswick, NJ

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

Joanna Chrostowski among 1,362 obstetrics & gynecology physician records in New Jersey

Joanna Chrostowski, D.O. is one of 1,362 obstetrics & gynecology physician records with a practice address in New Jersey. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 81% of them.

  • NPI issued2016 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2016 · median 2003 among the 900 with a school on file
  • Record last updated2026 · 60% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 obstetrics & gynecology physician records list a practice address in Hillsborough

They are 8 of the 575 NPPES records with a practice address in Hillsborough, and 1,362 obstetrics & gynecology physician records in New Jersey.

All 1,362 in New Jersey → Every provider in Hillsborough → Obstetrics & Gynecology Physician nationwide →

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

  1. Maureen Cernadas, MEDICAL DOCTORHillsborough, NJ 088441427137066
  2. Carolyn Delucia, M.D.Hillsborough, NJ 088441346288685
  3. Deneishia Fisher, M.D.Hillsborough, NJ 088441891878914
  4. Lauren GoetschHillsborough, NJ 088441336554377
  5. Michelle HuangHillsborough, NJ 088441790084473
  6. Kristin Kinsler, D.O.Hillsborough, NJ 088441538570833
  7. Wendy Wagner, M.D.Hillsborough, NJ 088441609832179
  8. William Ainslie, M.D.Metuchen, NJ 088401447364203

Common questions

What is Joanna Chrostowski, D.O.'s NPI number?

Joanna Chrostowski, D.O.'s National Provider Identifier (NPI) is 1639628464, issued on Sep 21, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Joanna Chrostowski, D.O. located?

The NPPES record lists a practice address at 331 US Highway 206 Ste 2F, Hillsborough, NJ, 08844. Phone: (732) 427-8102. Providers update this record themselves, so call before visiting.

How can I verify Joanna Chrostowski, D.O.'s license?

NPPES lists New Jersey license number 25MB10830200, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Joanna Chrostowski, D.O. prescribe under Medicare Part D?

In 2024, Joanna Chrostowski, D.O. had 59 Medicare Part D claims for 52 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.