What is Mark Romoff's specialty?

Mark Romoff (NPI 1578543179) is a Medicare-billing provider whose primary specialty is Nephrology in Van Nuys, CA.

Where does Mark Romoff practice?

Mark Romoff practices in Van Nuys, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1578543179.

How much does Medicare pay Mark Romoff?

Mark Romoff (NPI 1578543179) received approximately $314K in total Medicare Part B payments, serving 707 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1578543179

Mark RomoffM.D.

PRACTICEVALLEY INTERNAL MEDICINE & NEPHROLOGY MEDICAL GROUPSee all providers at this practice →

NephrologyVan Nuys, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

6,719

Unique beneficiaries

—

Total services

10,649

Distinct HCPCS

Medicare payment

$307K

Peer benchmark

Total Medicare services vs. 985 Nephrology providers in CA — top quintile (cohort median 1,482).

PRESCRIBING · PART D · 2024

Total Rx claims

6,654

Beneficiaries

—

Total drug cost

$675K

Distinct drugs

119

Brand share

20.4%

Top prescribed drugs

Atorvastatin Calcium573 claims

Levothyroxine Sodium311 claims

Amlodipine Besylate267 claims

Metoprolol Succinate215 claims

Rosuvastatin Calcium198 claims

QUALITY · MIPS · 2024

Final MIPS score

89.1

Quality

84.8

Cost

73.2

Improvement activities

40.0

Promoting interop.

99.0

Payment adjustment

0.60%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$277

Payment records

By payment type

Food and Beverage$239

Education$38

Top paying entities

Food and Beverage$239

Education$38

REFERRAL NETWORK

Where Mark Romoff'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). 37 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	275	1,040
Kevin Rice Diagnostic Radiology · Cape Girardeau, MO	127	1,369
Erik Zeegen Orthopedic Surgery · Tarzana, CA	72	1,468
Matthew Mischel Nephrology · Van Nuys, CA	57	643
City Of Los Angeles Ambulance Service Provider · Los Angeles, CA	47	171
Noha Barsoum Nephrology · North Hollywood, CA	44	246
PROVIDENCE HEALTH SYSTEM - SOUTHERN CALIFORNIA	43	108
BERMAN, GERALD	43	203
Chenduen Hwang Pathology · Van Nuys, CA	42	161
Michelle Han Physician Assistant · New York, NY	41	210
Jeffrey Glick Nephrology · North Hollywood, CA	35	250
LAKE BALBOA HEALTH CARE, INC.	34	208

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