What is Ruth Peng's specialty?

Ruth Peng (NPI 1891753638) is a Medicare-billing provider whose primary specialty is Pathology in Baltimore, MD.

Where does Ruth Peng practice?

Ruth Peng practices in Baltimore, MD, based on the location reported in the CMS Medicare provider datasets for NPI 1891753638.

How much does Medicare pay Ruth Peng?

Ruth Peng (NPI 1891753638) received approximately $112K in total Medicare Part B payments, serving 1,008 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1891753638

Ruth PengMD

PathologyBaltimore, MDI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,765

Unique beneficiaries

—

Total services

3,076

Distinct HCPCS

Medicare payment

$105K

Peer benchmark

Total Medicare services vs. 267 Pathology providers in MD — top quintile (cohort median 1,363).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

79.1

Quality

56.5

Cost

73.9

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.17%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Ruth Peng's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 44 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MERCY MEDICAL CENTER INC	626	1,336
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	80	118
NPI 1255386041	75	95
APPLEFELD, MARK	68	99
Quest Diagnostics Incorporated Md Clinical Laboratory · Baltimore, MD	68	114
Ankur Gupta Diagnostic Radiology · New York, NY	59	76
HANTMAN, IRA	44	143
David Sill Interventional Radiology · Baltimore, MD	38	68
Sow-Sei Lin Anesthesiology · Baltimore, MD	36	39
Bahram Sarfaraz Anesthesiology · Baltimore, MD	32	36
Brad Cogan Diagnostic Radiology · Baltimore, MD	30	47
Linda Wang Dermatology · Lutherville, MD	27	67

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events