2026 NPPES data Neurology Physician NPI 1740238005 D.O.
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MICHAEL GROF, D.O.

Neurology Physician in KENTWOOD, 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 · 124 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.2K
51 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL GROF, D.O. filed 1,621 Medicare Part D claims in 2023 as a Neurology Physician in KENTWOOD, Michigan, prescribing 69% generic.

2K
Part D claims, 2023
69%
generic prescribing
$1.2K
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.

MICHAEL GROF, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

1,621 Top 18% higher than 82% 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

Board-eligible specialty (heuristic — not verified)

MICHAEL GROF, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MICHAEL GROF, D.O.?

Quality data not reported

NPI registry status

Active

Issued 05/05/2006

NPI 1740238005

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

1,621 24% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

Specialty distribution in Michigan

How Neurology Physician compares to other specialties among Michigan providers

Michigan providers

Neurology Physician share within Michigan

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Neurology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neurology Physician ABMS/AOA estimate

Est. board-certified rate (Neurology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neurology Physician) — 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).

MICHAEL GROF, D.O. appears in the CMS NPPES registry as a Neurology Physician provider holding D.O. credentials at 2450 44TH ST SE, KENTWOOD, MI, 49512, with a listed phone of (616) 243-9898. NPI 1740238005 was issued on 05/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GROF 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 1,621 prescription claims written by this provider, covering 124 Medicare beneficiaries and totaling roughly $3.5 million in drug spend, split 31% brand-name and 69% generic by claim count, with an opioid prescribing rate of 18.5%. 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.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

2450 44TH ST SE
KENTWOOD, MI 49512

Provider Details

NPI 1740238005
Specialty Neurology Physician
Credentials D.O.
Gender Male
NPI Issued 05/05/2006

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 MICHAEL GROF, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$1.2K

Largest payer

CSL Behring

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 MICHAEL GROF, D.O.. To verify MICHAEL GROF, D.O.'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 · Above average

MICHAEL GROF, D.O. — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 1,621 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.

1,621
Total Claims
$3.5M
Total Drug Cost
124
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,010
Total Day Supply
55,904
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$3.3M
Generic Drug Cost
$110K
Opioid Claims
300 (18.5% rate)

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.51
Gender Split
54% female / 46% male
Age Distribution
<65: 22, 65-74: 55, 75-84: 34, 85+: 13

Top Prescribed Drugs (Medicare Part D)

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

What MICHAEL GROF, D.O. 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
Alprazolam
182
Gammagard Liquid
Immun Glob G(Igg)/Gly/Iga Ov50
152
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
152
Gamunex-C
Immune Globul G/Gly/Iga Avg 46
140
Pregabalin
65
Panzyga
Immun Glob G(Igg)-Ifas/Glycine
62
Amitriptyline Hcl
49
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
49
Dalfampridine Er
Dalfampridine
39
Clonazepam
38

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

Neurology Physician Overview

How MICHAEL GROF, D.O. fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

MICHAEL GROF, D.O.'s 1,621 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in Michigan

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

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL GROF, D.O.'s specialty?
MICHAEL GROF, D.O. specializes in Neurology Physician and practices in KENTWOOD, Michigan. Credentials: D.O..
How much does MICHAEL GROF, D.O. prescribe under Medicare Part D?
In 2023, MICHAEL GROF, D.O. wrote 1,621 Medicare Part D claims totaling $3.5M in drug costs for 124 beneficiaries.
Where is MICHAEL GROF, D.O. located?
MICHAEL GROF, D.O. is located at 2450 44TH ST SE, KENTWOOD, MI, 49512. Phone: (616) 243-9898.
What is MICHAEL GROF, D.O.'s NPI number?
MICHAEL GROF, D.O.'s National Provider Identifier (NPI) is 1740238005, issued on 05/05/2006.
Does MICHAEL GROF, D.O. prescribe more brand-name or generic drugs?
MICHAEL GROF, D.O.'s prescribing is 31% brand-name and 69% generic drugs by claim count, with $3.3M in brand drug costs.
Does MICHAEL GROF, D.O. prescribe opioids?
Yes, MICHAEL GROF, D.O. had 300 opioid claims in 2023 with an opioid prescribing rate of 18.5%.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does MICHAEL GROF, D.O. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL GROF, D.O.'s most frequently prescribed drugs include Alprazolam, Gammagard Liquid, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL GROF, D.O. accept Medicare?
MICHAEL GROF, D.O. appears in CMS Medicare data with 1,621 Part D claims and 124 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL GROF, D.O.'s credentials?
MICHAEL GROF, D.O.'s NPI is 1740238005 with credentials D.O.. 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