2026 NPPES data Primary Care Nurse Practitioner NPI 1366949596
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BRIAN GROSSMAN

Primary Care Nurse Practitioner in ALLEN PARK, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 546 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$63.08
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

BRIAN GROSSMAN filed 1,722 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in ALLEN PARK, Michigan, prescribing 96% generic.

2K
Part D claims, 2023
96%
generic prescribing
$63.08
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

BRIAN GROSSMAN's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,722 Top 17% higher than 83% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). This entry sits in this band. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about BRIAN GROSSMAN?

Quality data not reported

NPI registry status

Active

Issued 04/13/2018

NPI 1366949596

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

1,722 26% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

Specialty distribution in Michigan

How Primary Care Nurse Practitioner compares to other specialties among Michigan providers

Michigan providers

Primary Care Nurse Practitioner share within Michigan

1. Primary Care Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Primary Care Nurse Practitioner share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Primary Care Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Primary Care Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Primary Care Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Primary Care Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

BRIAN GROSSMAN appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider at 14575 SOUTHFIELD RD, ALLEN PARK, MI, 48101, with a listed phone of (313) 381-8787. NPI 1366949596 was issued on 04/13/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GROSSMAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,722 prescription claims written by this provider, covering 546 Medicare beneficiaries and totaling roughly $64K in drug spend, split 4% brand-name and 96% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

14575 SOUTHFIELD RD
ALLEN PARK, MI 48101

Provider Details

NPI 1366949596
Specialty Primary Care Nurse Practitioner
Gender Male
NPI Issued 04/13/2018

Hospital and facility affiliations

Facilities where BRIAN GROSSMAN bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

EAR NOSE AND THROAT CONSULTANTS PC
NOVI, MI

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for BRIAN GROSSMAN. Source: openpaymentsdata.cms.gov.

Total received

$63

Largest payer

Optinose US, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Michigan MI-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 — they are NOT specific to BRIAN GROSSMAN. To verify BRIAN GROSSMAN's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

BRIAN GROSSMAN — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 1,722 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,722
Total Claims
$64K
Total Drug Cost
546
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,285
Total Day Supply
59,516
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$26K
Generic Drug Cost
$37K
Antibiotic Claims
342

Patient Demographics

Average Patient Age
68.6 years
Avg HCC Risk Score
1.63
Gender Split
65% female / 35% male
Age Distribution
<65: 139, 65-74: 254, 75-84: 123, 85+: 30

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What BRIAN GROSSMAN prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Fluticasone Propionate
334
Azelastine Hcl
242
Montelukast Sodium
199
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
190
Famotidine
174
Levocetirizine Dihydrochloride
74
Amoxicillin
63
Pantoprazole Sodium
45
Ciprofloxacin Hcl
40
Ipratropium Bromide
39

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Primary Care Nurse Practitioner Overview

How BRIAN GROSSMAN fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

BRIAN GROSSMAN's 1,722 claims are above the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Michigan

Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as GROSSMAN.

Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN GROSSMAN's specialty?
BRIAN GROSSMAN specializes in Primary Care Nurse Practitioner and practices in ALLEN PARK, Michigan.
How much does BRIAN GROSSMAN prescribe under Medicare Part D?
In 2023, BRIAN GROSSMAN wrote 1,722 Medicare Part D claims totaling $64K in drug costs for 546 beneficiaries.
Where is BRIAN GROSSMAN located?
BRIAN GROSSMAN is located at 14575 SOUTHFIELD RD, ALLEN PARK, MI, 48101. Phone: (313) 381-8787.
What is BRIAN GROSSMAN's NPI number?
BRIAN GROSSMAN's National Provider Identifier (NPI) is 1366949596, issued on 04/13/2018.
Does BRIAN GROSSMAN prescribe more brand-name or generic drugs?
BRIAN GROSSMAN's prescribing is 4% brand-name and 96% generic drugs by claim count, with $26K in brand drug costs.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does BRIAN GROSSMAN prescribe most often?
Based on 2023 Medicare Part D data, BRIAN GROSSMAN's most frequently prescribed drugs include Fluticasone Propionate, Azelastine Hcl, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN GROSSMAN accept Medicare?
BRIAN GROSSMAN appears in CMS Medicare data with 1,722 Part D claims and 546 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN GROSSMAN's credentials?
BRIAN GROSSMAN's NPI is 1366949596. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology