Ruth Y. Peng, MD
Anatomic Pathology & Clinical Pathology Physician · Baltimore, MD
Ruth Y. Peng, MD is an anatomic pathology & clinical pathology physician with a practice address in Baltimore, Maryland, and NPI 1891753638, issued on May 2, 2006. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Ruth Y. Peng
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 48345 WI
Self-reported in NPPES; status is on the state search - Practice location
- 345 St. Paul Place, Baltimore, MD 21202
- Phone
- (410) 332-9447
- Enumerated
- May 2, 2006
- Record last updated
- Dec 30, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080724000311); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1999
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 357 in Maryland → Look up another NPI →
Also registered at 345 St. Paul Place
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Bassett-Jellema, CRNPPediatric Nurse Practitioner1215287065
- Joon Ying BoonStudent in an Organized Health Care Education/Training Program1104463876
- Laura Bumba, CRNPNeonatal Nurse Practitioner1285959296
- Kaitlyn CalabresiStudent in an Organized Health Care Education/Training Program1992643118
- Joanna Danilov, CRNPNeonatal Nurse Practitioner1407111909
- Heather Dougherty, NPNeonatal Nurse Practitioner1255726162
Verify Ruth Y. Peng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- St Paul Place Specialists, Inc.Baltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruth Y. Peng among 357 anatomic pathology & clinical pathology physician records in Maryland
Ruth Y. Peng, MD is one of 357 anatomic pathology & clinical pathology physician records with a practice address in Maryland. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1999 · median 2003 among the 191 with a school on file
- Record last updated2015 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Maryland
There are 357 anatomic pathology & clinical pathology physician records in Maryland.
All 357 in Maryland → Every provider in Baltimore → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Georgeta Giblen, M.D.Baltimore, MD 212021962421057
- Li Liu, M.D.Baltimore, MD 212021275850331
- Lawrence Brown, M.D.Baltimore, MD 212011811951205
- Jennifer Collins, M.P.H., D.O.Baltimore, MD 212011518257278
- Andreah De La HozBaltimore, MD 212011205458619
- John Dumler, M.D.Baltimore, MD 212011417998634
- Rachel Fanaroff, MDBaltimore, MD 212011275055410
- Meghan Gloth, M.D.Baltimore, MD 212011336559236
Common questions
What is Ruth Y. Peng, MD's NPI number?
Ruth Y. Peng, MD's National Provider Identifier (NPI) is 1891753638, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Y. Peng, MD located?
The NPPES record lists a practice address at 345 St. Paul Place, Baltimore, MD, 21202. Phone: (410) 332-9447. Providers update this record themselves, so call before visiting.
How can I verify Ruth Y. Peng, MD's license?
Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Ruth Y. Peng, MD's MIPS final score?
The 2023 MIPS final score is 83.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.