What is Merrill Nisam's specialty?

Merrill Nisam (NPI 1205824067) is a Medicare-billing provider whose primary specialty is Critical Care (Intensivists) in Greenbrae, CA.

Where does Merrill Nisam practice?

Merrill Nisam practices in Greenbrae, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1205824067.

How much does Medicare pay Merrill Nisam?

Merrill Nisam (NPI 1205824067) received approximately $83K in total Medicare Part B payments, serving 530 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1205824067

Merrill NisamMD

Critical Care (Intensivists)Greenbrae, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

789

Unique beneficiaries

—

Total services

896

Distinct HCPCS

Medicare payment

$78K

Peer benchmark

Total Medicare services vs. 526 Critical Care (Intensivists) providers in CA — top quintile (cohort median 399).

PRESCRIBING · PART D · 2024

Total Rx claims

1,114

Beneficiaries

—

Total drug cost

$395K

Distinct drugs

Brand share

80.1%

Top prescribed drugs

Tiotropium Bromide154 claims

Budesonide/Formoterol Fumarate111 claims

Albuterol Sulfate97 claims

Montelukast Sodium76 claims

Budesonide/Formoterol Fumarate73 claims

QUALITY · MIPS · 2024

Final MIPS score

81.0

Quality

80.9

Cost

75.9

Improvement activities

40.0

Promoting interop.

76.0

Payment adjustment

0.25%

Subgroup

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$437

Payment records

By payment type

Food and Beverage$420

Education$17

Top paying entities

Food and Beverage$420

Education$17

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 050131

Hospital

CCN 050360

Hospital

REFERRAL NETWORK

Where Merrill Nisam'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). 53 inbound referrers · 88 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARIN GENERAL HOSPITAL	318	1,528
John Graham Family Practice · Greenbrae, CA	139	410
ORWIG, DENNIS	100	433
Philip Kurzman Diagnostic Radiology · Greenbrae, CA	93	351
Donna Hoghooghi Diagnostic Radiology · Greenbrae, CA	80	370
Brian Nagai Diagnostic Radiology · Fremont, CA	80	317
SUTTER BAY HOSPITALS	78	322
Robert Wirth Diagnostic Radiology · Novato, CA	67	209
Natalya Lvoff Diagnostic Radiology · Greenbrae, CA	61	214
BAER, MARGARET	55	170
Mark Wexman Cardiology · Larkspur, CA	53	161
William Demartini Diagnostic Radiology · Greenbrae, CA	53	161

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MARIN GENERAL HOSPITAL	324	1,591
John Graham Family Practice · Greenbrae, CA	121	268
Brian Nagai Diagnostic Radiology · Fremont, CA	113	428
Adam Nevitt Diagnostic Radiology · Daly City, CA	107	515
Philip Kurzman Diagnostic Radiology · Greenbrae, CA	91	335
Robert Wirth Diagnostic Radiology · Novato, CA	84	258
Ralph Koenker Diagnostic Radiology · Novato, CA	82	240
Donna Hoghooghi Diagnostic Radiology · Greenbrae, CA	77	312
Felix Adler Diagnostic Radiology · Mountain View, CA	75	268
Vida Campbell Diagnostic Radiology · Palo Alto, CA	74	201
ORWIG, DENNIS	73	276
North Star Emergency Services, Inc. Ambulance Service Provider · Livermore, CA	70	184

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