Joan S. Hier, MD
Obstetrics & Gynecology Physician · Brookline, MA
Joan S. Hier, MD is an obstetrics & gynecology physician with a practice address in Brookline, Massachusetts, and NPI 1336302918, issued on Jul 3, 2008. Check the license (Massachusetts L-237220, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Joan S. Hier
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- L-237220 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Brookline PL, Brookline, MA 02445
- Phone
- (617) 735-8800
- Enumerated
- Jul 3, 2008
- Record last updated
- Feb 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (617) 278-9358
- Medicare enrollment
- Enrolled (PECOS I20121022000525); may accept Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 2008
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Also registered at 1 Brookline PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Armbrust, AU.D.Audiologist1922254150
- Brenda Baker, M.D.Obstetrics & Gynecology Physician1972537629
- Rebecca Bernat, LICSWClinical Social Worker1770810830
- Carolyn Bernstein, MDNeurology Physician1083782981
- Lauren BoccuzziPediatric Nurse Practitioner1700213253
- Bryann Bromley, M.D.Diagnostic Radiology Physician1104825959
Verify Joan S. Hier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license L-237220Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
34 Medicare Part D claims for 12 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol13 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: $30.71
1 payment: food and beverage; the largest payer was CooperSurgical, Inc. 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.
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
- Brookline Village Obgyn LLCBrookline, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joan S. Hier among 1,127 obstetrics & gynecology physician records in Massachusetts
Joan S. Hier, MD 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 2008, is newer than 61% of them.
- NPI issued2008 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2008 · median 2004 among the 715 with a school on file
- Record last updated2013 · 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).
45 obstetrics & gynecology physician records list a practice address in Brookline
They are 45 of the 2,357 NPPES records with a practice address in Brookline, and 1,127 obstetrics & gynecology physician records in Massachusetts.
All 1,127 in Massachusetts → Every provider in Brookline → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Carolyn Cline, MDBrookline, MA 024451043277429
- Dema Demaggio, MDBrookline, MA 024451306803606
- Toni Huebscher Golen, M.D.Brookline, MA 024451235161753
- Susan Hellerstein, MDBrookline, MA 024451013974492
- Vivian Hernandez, MDBrookline, MA 024451164489530
- Jeffrey Katz, MDBrookline, MA 024451174513261
- Abraham Morse, MD, MBABrookline, MA 024451467443770
- Hannah Parker, M.D.Brookline, MA 024451124078167
Common questions
What is Joan S. Hier, MD's NPI number?
Joan S. Hier, MD's National Provider Identifier (NPI) is 1336302918, issued on Jul 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Joan S. Hier, MD located?
The NPPES record lists a practice address at 1 Brookline PL, Brookline, MA, 02445. Phone: (617) 735-8800. Providers update this record themselves, so call before visiting.
How can I verify Joan S. Hier, MD's license?
NPPES lists Massachusetts license number L-237220, 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 Joan S. Hier, MD prescribe under Medicare Part D?
In 2024, Joan S. Hier, MD had 34 Medicare Part D claims for 12 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.