NPI registry status
Active
2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1790745966 D.O.
Verify on CMS → Douglas Marsh, D.O.
Addiction Medicine (Family Medicine) Physician in Melvindale, 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 799 in Addiction 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
703
Medicare Part D claims · 40 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
80%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Douglas Marsh, D.O. filed 703 Medicare Part D claims in 2024 as an Addiction Medicine (Family Medicine) Physician in Melvindale, Michigan, prescribing 80% generic.
- 703
- Part D claims, 2024
- 80%
- generic prescribing
- ≥70th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Douglas Marsh, D.O.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1790745966), first enumerated 03/23/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 703 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not Douglas Marsh, D.O.'s individual license status. Verify directly with the state medical board.
Source: MI-BOM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Marsh with other Addiction Medicine (Family Medicine) Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Michigan
- Dr. Jerry Appel, DO Bloomfield Township, MI
- Dr. Jason Beatty, DO Alpena, MI
- Julie Brockman, APRN-CNP Grandville, MI
- Dr. Eric Coffman, D.O. Bloomfield, MI
- Dr. Anthony Davies, MD Deckerville, MI
- Dr. Paul Emerson, D.O. Taylor, MI
Other specialties in Melvindale: Pharmacist (11) · Home Health Aide (3) · Other Technician (3) · Behavior Technician (3)
CMS NPPES provider registry desk
NPI 1790745966 · Addiction Medicine (Family Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1790745966
- ENUM-LEGACY 2006
- TAX-NARROW 799
- RX-LIGHT 703
- BOOK-THIN 26 in Michigan
- PHOTO-ENUM Fred Vonstieff, M.D. · 2006
Douglas Marsh, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
703 ≥ 70th percentile 70% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Douglas Marsh, 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 Douglas Marsh, D.O.?
Quality data not reportedPrimary specialty
Addiction Medicine (Family Medicine) Physician
Medicare Part D claims
703 41% vs specialty avg
Specialty distribution in Michigan
How Addiction 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 Addiction 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).
Practice Address
Provider Details
| NPI | 1790745966 |
|---|---|
| Specialty | Addiction Medicine (Family Medicine) Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 03/23/2006 |
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 Douglas Marsh, D.O.. To verify Douglas Marsh, 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
Douglas Marsh, D.O. - brand share 17.0%
Addiction Medicine (Family Medicine) Physician average
17% brand-name claims vs 80% generic, on 703 2024 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 2024.
703
Total Claims
$100K
Total Drug Cost
40
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,369.133
- Total Day Supply
- 39,397
- Brand vs Generic
- 17% brand / 80% generic
- Brand Drug Cost
- $64K
- Generic Drug Cost
- $34K
- Antibiotic Claims
- 22
Patient Demographics
- Average Patient Age
- 70.7 years
- Avg HCC Risk Score
- 1.12
- Gender Split
- 45% female / 55% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Douglas Marsh, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
100 claims
- Albuterol Sulfate … 35
Albuterol Sulfate Hfa
35 claims
- Losartan Potassium 31
Losartan Potassium
31 claims
- Zubsolv 28
Zubsolv
28 claims
- Metformin Hcl 26
Metformin Hcl
26 claims
- Hydrochlorothiazide 24
Hydrochlorothiazide
24 claims
- Amitriptyline Hcl 22
Amitriptyline Hcl
22 claims
- Metoprolol Tartrate 19
Metoprolol Tartrate
19 claims
| Drug | Claims |
|---|---|
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 100 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 35 |
| Losartan Potassium | 31 |
| Zubsolv Buprenorphine Hcl/Naloxone Hcl | 28 |
| Metformin Hcl | 26 |
| Hydrochlorothiazide | 24 |
| Amitriptyline Hcl | 22 |
| Metoprolol Tartrate | 19 |
| Atorvastatin Calcium | 16 |
| Montelukast Sodium | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Family Medicine) Physician in MI →
All providers in Michigan →
Compare specialties →
Addiction Medicine (Family Medicine) Physician Overview
How Douglas Marsh, D.O. fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.
799
Addiction Medicine (Family Medicine) Physician Providers in US
49
States with Addiction Medicine (Family Medicine) Physician
1,187
Avg Claims per Provider
Douglas Marsh, D.O.'s 703 claims are below the specialty average of 1,187.
Nationwide Addiction Medicine (Family Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Marsh, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Addiction 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 Marsh.
One of 26 Addiction Medicine (Family Medicine) Physician providers enrolled in Michigan, 11 are shown on this page.
Dr. Peter Farago
M.D.
Grosse Pointe, MI
Dr. Michael Fox
D.O.
Livonia, MI
Dr. Morgan Fox
DO
Livonia, MI
Dr. Timothy Gammons
D.O.
Sterling Heights, MI
Dr. Barry Gross
D.O.
Fair Haven, MI
Compare Addiction Medicine (Family Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Douglas Marsh, D.O.'s specialty? ▼
Douglas Marsh, D.O. specializes in Addiction Medicine (Family Medicine) Physician and practices in Melvindale, Michigan. Credentials: D.O..
How much does Douglas Marsh, D.O. prescribe under Medicare Part D? ▼
In 2024, Douglas Marsh, D.O. wrote 703 Medicare Part D claims totaling $100K in drug costs for 40 beneficiaries.
Where is Douglas Marsh, D.O. located? ▼
Douglas Marsh, D.O. is located at 18590 ALLEN RD, Melvindale, MI, 48122. Phone: (313) 928-5000.
What is Douglas Marsh, D.O.'s NPI number? ▼
Douglas Marsh, D.O.'s National Provider Identifier (NPI) is 1790745966, issued on 03/23/2006.
Does Douglas Marsh, D.O. prescribe more brand-name or generic drugs? ▼
Douglas Marsh, D.O.'s prescribing is 17% brand-name and 80% generic drugs by claim count, with $64K in brand drug costs.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 799 Addiction Medicine (Family Medicine) Physician providers across 49 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,187 Medicare Part D claims per year.
What drugs does Douglas Marsh, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Douglas Marsh, D.O.'s most frequently prescribed drugs include Buprenorphine-Naloxone, Albuterol Sulfate Hfa, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Douglas Marsh, D.O. accept Medicare? ▼
Douglas Marsh, D.O. appears in CMS Medicare data with 703 Part D claims and 40 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Douglas Marsh, D.O.'s credentials? ▼
Douglas Marsh, D.O.'s NPI is 1790745966 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.