2026 NPPES data Family Medicine Physician NPI 1962995480 MD, PHD
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JOHN GEDDES, MD, PHD

Family Medicine Physician in ROSEVILLE, 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
9K
Medicare Part D claims · 708 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JOHN GEDDES, MD, PHD filed 9,011 Medicare Part D claims in 2023 as a Family Medicine Physician in ROSEVILLE, Michigan, prescribing 89% generic.

9K
Part D claims, 2023
89%
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.

JOHN GEDDES, MD, PHD's Medicare Part D volume vs every U.S. prescriber

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

9,011 Top 2% higher than 98% 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%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

JOHN GEDDES, MD, PHD 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 JOHN GEDDES, MD, PHD?

Quality data not reported

NPI registry status

Active

Issued 06/09/2018

NPI 1962995480

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

9,011 164% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Michigan

How Family Medicine Physician compares to other specialties among Michigan providers

Michigan providers

Family Medicine Physician share within Michigan

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

Specialty board-certification context

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

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

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

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

JOHN GEDDES, MD, PHD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD, PHD credentials at 18325 E 10 MILE RD STE 300, ROSEVILLE, MI, 48066, with a listed phone of (586) 447-4000. NPI 1962995480 was issued on 06/09/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GEDDES 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 9,011 prescription claims written by this provider, covering 708 Medicare beneficiaries and totaling roughly $758K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 2.1%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

18325 E 10 MILE RD STE 300
ROSEVILLE, MI 48066

Provider Details

NPI 1962995480
Specialty Family Medicine Physician
Credentials MD, PHD
Gender Male
NPI Issued 06/09/2018

Hospital and facility affiliations

Facilities where JOHN GEDDES, MD, PHD 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.

OAKWOOD AMBULATORY LLC
GROSSE POINTE, 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 JOHN GEDDES, MD, PHD. To verify JOHN GEDDES, MD, PHD'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

JOHN GEDDES, MD, PHD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 9,011 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.

9,011
Total Claims
$758K
Total Drug Cost
708
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
21,056
Total Day Supply
618,242
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$570K
Generic Drug Cost
$186K
Opioid Claims
186 (2.1% rate)
Antibiotic Claims
140

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.37
Gender Split
54% female / 46% male
Age Distribution
<65: 78, 65-74: 324, 75-84: 204, 85+: 102

Top Prescribed Drugs (Medicare Part D)

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

What JOHN GEDDES, MD, PHD 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
Atorvastatin Calcium
636
Amlodipine Besylate
385
Lisinopril
361
Levothyroxine Sodium
359
Omeprazole
298
Losartan Potassium
268
Metoprolol Succinate
267
Simvastatin
221
Metformin Hcl
215
Rosuvastatin Calcium
187

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

Family Medicine Physician Overview

How JOHN GEDDES, MD, PHD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

JOHN GEDDES, MD, PHD's 9,011 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Michigan

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

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

Frequently Asked Questions

What is JOHN GEDDES, MD, PHD's specialty?
JOHN GEDDES, MD, PHD specializes in Family Medicine Physician and practices in ROSEVILLE, Michigan. Credentials: MD, PHD.
How much does JOHN GEDDES, MD, PHD prescribe under Medicare Part D?
In 2023, JOHN GEDDES, MD, PHD wrote 9,011 Medicare Part D claims totaling $758K in drug costs for 708 beneficiaries.
Where is JOHN GEDDES, MD, PHD located?
JOHN GEDDES, MD, PHD is located at 18325 E 10 MILE RD STE 300, ROSEVILLE, MI, 48066. Phone: (586) 447-4000.
What is JOHN GEDDES, MD, PHD's NPI number?
JOHN GEDDES, MD, PHD's National Provider Identifier (NPI) is 1962995480, issued on 06/09/2018.
Does JOHN GEDDES, MD, PHD prescribe more brand-name or generic drugs?
JOHN GEDDES, MD, PHD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $570K in brand drug costs.
Does JOHN GEDDES, MD, PHD prescribe opioids?
Yes, JOHN GEDDES, MD, PHD had 186 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does JOHN GEDDES, MD, PHD prescribe most often?
Based on 2023 Medicare Part D data, JOHN GEDDES, MD, PHD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN GEDDES, MD, PHD accept Medicare?
JOHN GEDDES, MD, PHD appears in CMS Medicare data with 9,011 Part D claims and 708 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN GEDDES, MD, PHD's credentials?
JOHN GEDDES, MD, PHD's NPI is 1962995480 with credentials MD, PHD. 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