Mimi Ryung Yum, M.D.
Obstetrics & Gynecology Physician · Brookline, MA
Mimi Ryung Yum, M.D. is an obstetrics & gynecology physician with a practice address in Brookline, Massachusetts, and NPI 1235112996, issued on Nov 26, 2005. Check the license (Massachusetts 153790, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mimi Ryung Yum
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 153790 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Brookline PL Ste 423, Brookline, MA 02445
- Phone
- (617) 566-1535
- Enumerated
- Nov 26, 2005
- Record last updated
- Jan 17, 2023
- Fax
- (617) 566-0988
- Medicaid ID
- 3154971 MA
- Medicare enrollment
- Enrolled (PECOS I20090414000011); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 1993
- 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 Ste 423
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline Croopnick, M.D.Obstetrics & Gynecology Physician1881787919
Verify Mimi Ryung Yum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 153790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
50 Medicare Part D claims for 19 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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: $51.18
2 payments; by number, the most common kind was 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.
Mimi Ryung Yum among 1,127 obstetrics & gynecology physician records in Massachusetts
Mimi Ryung Yum, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1993 · median 2004 among the 715 with a school on file
- Record last updated2023 · 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 Mimi Ryung Yum, M.D.'s NPI number?
Mimi Ryung Yum, M.D.'s National Provider Identifier (NPI) is 1235112996, issued on Nov 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mimi Ryung Yum, M.D. located?
The NPPES record lists a practice address at 1 Brookline PL Ste 423, Brookline, MA, 02445. Phone: (617) 566-1535. Providers update this record themselves, so call before visiting.
How can I verify Mimi Ryung Yum, M.D.'s license?
NPPES lists Massachusetts license number 153790, 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 Mimi Ryung Yum, M.D. prescribe under Medicare Part D?
In 2024, Mimi Ryung Yum, M.D. had 50 Medicare Part D claims for 19 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.