2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1730620386 D.O.
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RACHEL DENNY, D.O.

Geriatric Medicine (Family Medicine) Physician in ANN ARBOR, 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
562
Medicare Part D claims · 60 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: RACHEL DENNY, D.O. is a Geriatric Medicine (Family Medicine) Physician ([object Object]) practicing in ANN ARBOR, Michigan with a Medicare Part D prescribing footprint of 562 claims across 60 beneficiaries — 18% brand-name prescribing .

What stands out: RACHEL DENNY, D.O. filed 562 Medicare Part D claims in 2023 across ANN ARBOR, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

RACHEL DENNY, D.O. 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).

RACHEL DENNY, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 03/15/2017

NPI 1730620386

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

562 88% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in Michigan

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Michigan providers

Michigan providers

Geriatric Medicine (Family Medicine) Physician share within Michigan

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Family Medicine) 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).

RACHEL DENNY, D.O. is a Geriatric Medicine (Family Medicine) Physician provider practicing in ANN ARBOR, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1730620386. 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.

RACHEL DENNY, D.O. appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding D.O. credentials at 2215 FULLER RD, ANN ARBOR, MI, 48105, with a listed phone of (734) 845-5539. NPI 1730620386 was issued on 03/15/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DENNY 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 562 prescription claims written by this provider, covering 60 Medicare beneficiaries and totaling roughly $38K in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 3.6%. 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

2215 FULLER RD
ANN ARBOR, MI 48105

Provider Details

NPI 1730620386
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials D.O.
Gender Female
NPI Issued 03/15/2017

Hospital and facility affiliations

Facilities where RACHEL DENNY, D.O. 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.

REGENTS OF THE UNIVERSITY OF MICHIGAN
ANN ARBOR, 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 RACHEL DENNY, D.O.. To verify RACHEL DENNY, 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 · Typical

RACHEL DENNY, D.O. — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 562 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.

562
Total Claims
$38K
Total Drug Cost
60
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
586
Total Day Supply
13,768
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$26K
Generic Drug Cost
$11K
Opioid Claims
20 (3.6% rate)
Antibiotic Claims
21

Patient Demographics

Average Patient Age
81.4 years
Avg HCC Risk Score
2.36

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Eliquis
Apixaban
52
Atorvastatin Calcium
44
Quetiapine Fumarate
28
Donepezil Hcl
21
Lisinopril
21
Hydrochlorothiazide
17
Hydrocortisone
14
Levothyroxine Sodium
14
Metoprolol Tartrate
14
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
13

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

Geriatric Medicine (Family Medicine) Physician Overview

How RACHEL DENNY, D.O. fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

RACHEL DENNY, D.O.'s 562 claims are below the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in Michigan

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

Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RACHEL DENNY, D.O.'s specialty?
RACHEL DENNY, D.O. specializes in Geriatric Medicine (Family Medicine) Physician and practices in ANN ARBOR, Michigan. Credentials: D.O..
How much does RACHEL DENNY, D.O. prescribe under Medicare Part D?
In 2023, RACHEL DENNY, D.O. wrote 562 Medicare Part D claims totaling $38K in drug costs for 60 beneficiaries.
Where is RACHEL DENNY, D.O. located?
RACHEL DENNY, D.O. is located at 2215 FULLER RD, ANN ARBOR, MI, 48105. Phone: (734) 845-5539.
What is RACHEL DENNY, D.O.'s NPI number?
RACHEL DENNY, D.O.'s National Provider Identifier (NPI) is 1730620386, issued on 03/15/2017.
Does RACHEL DENNY, D.O. prescribe more brand-name or generic drugs?
RACHEL DENNY, D.O.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $26K in brand drug costs.
Does RACHEL DENNY, D.O. prescribe opioids?
Yes, RACHEL DENNY, D.O. had 20 opioid claims in 2023 with an opioid prescribing rate of 3.6%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does RACHEL DENNY, D.O. prescribe most often?
Based on 2023 Medicare Part D data, RACHEL DENNY, D.O.'s most frequently prescribed drugs include Eliquis, Atorvastatin Calcium, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RACHEL DENNY, D.O. accept Medicare?
RACHEL DENNY, D.O. appears in CMS Medicare data with 562 Part D claims and 60 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RACHEL DENNY, D.O.'s credentials?
RACHEL DENNY, D.O.'s NPI is 1730620386 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