2026 NPPES data General Practice Physician NPI 1043897051 DO
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NICHOLAS GREGORY, DO

General Practice Physician in YPSILANTI, 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
296
Medicare Part D claims · 87 beneficiaries · General Practice Physician avg: 3K
What the federal data reveals: NICHOLAS GREGORY, DO is a General Practice Physician ([object Object]) practicing in YPSILANTI, Michigan with a Medicare Part D prescribing footprint of 296 claims across 87 beneficiaries .

What stands out: NICHOLAS GREGORY, DO filed 296 Medicare Part D claims in 2023 across YPSILANTI, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NICHOLAS GREGORY, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NICHOLAS GREGORY, DO at a glance

Quality data not reported

NPI registry status

Active

Issued 03/25/2021

NPI 1043897051

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

296 90% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Michigan

How General Practice Physician compares to other specialties among Michigan providers

Michigan providers

General Practice Physician share within Michigan

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (General Practice 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).

NICHOLAS GREGORY, DO is a General Practice Physician provider practicing in YPSILANTI, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1043897051. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

NICHOLAS GREGORY, DO appears in the CMS NPPES registry as a General Practice Physician provider holding DO credentials at IHA HOSPITAL MEDICINE SERVICES, YPSILANTI, MI, 48197, with a listed phone of (734) 712-8676. NPI 1043897051 was issued on 03/25/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GREGORY 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 296 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $24K in drug spend, with an opioid prescribing rate of 8.4%. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

IHA HOSPITAL MEDICINE SERVICES
YPSILANTI, MI 48197

Provider Details

NPI 1043897051
Specialty General Practice Physician
Credentials DO
Gender Male
NPI Issued 03/25/2021

Hospital and facility affiliations

Facilities where NICHOLAS GREGORY, DO 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.

IHA HEALTH SERVICES CORPORATION
CHELSEA, 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).

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 NICHOLAS GREGORY, DO. To verify NICHOLAS GREGORY, DO'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.

Medicare Part D Prescribing Data

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

296
Total Claims
$24K
Total Drug Cost
87
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
467
Total Day Supply
13,141
Generic Drug Cost
$5K
Opioid Claims
25 (8.4% rate)

Patient Demographics

Average Patient Age
68.5 years
Avg HCC Risk Score
1.93
Gender Split
52% female / 48% male
Age Distribution
<65: 27, 65-74: 33, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
22
Gabapentin
18
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
18
Lisinopril
12
Losartan Potassium
12
Prasugrel Hcl
12

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

General Practice Physician Overview

How NICHOLAS GREGORY, DO fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

NICHOLAS GREGORY, DO's 296 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in Michigan

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NICHOLAS GREGORY, DO's specialty?
NICHOLAS GREGORY, DO specializes in General Practice Physician and practices in YPSILANTI, Michigan. Credentials: DO.
How much does NICHOLAS GREGORY, DO prescribe under Medicare Part D?
In 2023, NICHOLAS GREGORY, DO wrote 296 Medicare Part D claims totaling $24K in drug costs for 87 beneficiaries.
Where is NICHOLAS GREGORY, DO located?
NICHOLAS GREGORY, DO is located at IHA HOSPITAL MEDICINE SERVICES, YPSILANTI, MI, 48197. Phone: (734) 712-8676.
What is NICHOLAS GREGORY, DO's NPI number?
NICHOLAS GREGORY, DO's National Provider Identifier (NPI) is 1043897051, issued on 03/25/2021.
Does NICHOLAS GREGORY, DO prescribe opioids?
Yes, NICHOLAS GREGORY, DO had 25 opioid claims in 2023 with an opioid prescribing rate of 8.4%.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does NICHOLAS GREGORY, DO prescribe most often?
Based on 2023 Medicare Part D data, NICHOLAS GREGORY, DO's most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NICHOLAS GREGORY, DO accept Medicare?
NICHOLAS GREGORY, DO appears in CMS Medicare data with 296 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NICHOLAS GREGORY, DO's credentials?
NICHOLAS GREGORY, DO's NPI is 1043897051 with credentials DO. 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