NPI registry status
Active
2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1730620386 D.O.
Verify on CMS → Rachel Denny, D.O.
Geriatric Medicine (Family Medicine) Physician in Ann Arbor, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,779 in Geriatric Medicine (Family Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
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
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Rachel Denny, D.O. filed 562 Medicare Part D claims in 2023 as a Geriatric Medicine (Family Medicine) Physician in Ann Arbor, Michigan, prescribing 82% generic.
- 562
- Part D claims, 2023
- 82%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Rachel Denny, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
562 Top 34% higher than 66% of 1,370,886 prescribers
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 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).
What does the federal data show about Rachel Denny, D.O.?
Quality data not reportedPrimary specialty
Geriatric Medicine (Family Medicine) Physician
Medicare Part D claims
562 88% vs specialty avg
Specialty distribution in Michigan
How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Michigan providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Geriatric Medicine (Family Medicine) Physician. Verify directly:
How MIPS and board certification work
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. 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.
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%.
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
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%
Geriatric Medicine (Family Medicine) Physician average
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.
What Rachel Denny, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
52 claims
- Atorvastatin Calcium
Atorvastatin Calcium
44 claims
- Quetiapine Fumarate
Quetiapine Fumarate
28 claims
- Donepezil Hcl
Donepezil Hcl
21 claims
- Lisinopril
Lisinopril
21 claims
- Hydrochlorothiazide 17
Hydrochlorothiazide
17 claims
- Hydrocortisone 14
Hydrocortisone
14 claims
- Levothyroxine Sodium 14
Levothyroxine Sodium
14 claims
| 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.
More Geriatric Medicine (Family Medicine) Physician in MI →
All providers in Michigan →
Compare specialties →
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.
Dr. Mutahhar Ahmad
MD
Southfield, MI
Dr. Raza Ali
M.D
Canton, MI
Dr. Arletha Anderson
M.D.
Southfield, MI
Dr. Mary Ball
M.D.
Grand Rapids, MI
Dr. Mark Bates
M.D.
Byron Center, MI
Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Geriatric Medicine (Family Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Michigan
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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.