NPI registry status
Active
2026 NPPES data Plastic Surgery Physician NPI 1376833509 M.D.
Verify on CMS → Ryan Terlouw, M.D.
Plastic Surgery Physician in Muskegon, 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 5,431 in Plastic Surgery 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
413
Medicare Part D claims · 229 beneficiaries · Plastic Surgery Physician avg: 88
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$184.13
5 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Ryan Terlouw, M.D. filed 413 Medicare Part D claims in 2024 as a Plastic Surgery Physician in Muskegon, Michigan, prescribing 91% generic.
- 413
- Part D claims, 2024
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥61st
- 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 Ryan Terlouw, M.D.
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 1376833509), first enumerated 04/08/2011.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 413 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$184.13 in reported industry payments (5 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not Ryan Terlouw, M.D.'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.
CMS NPPES provider registry desk
NPI 1376833509 · Plastic Surgery Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1376833509
- ENUM-MID 2011
- TAX-MID 5K Plastic Surgery
- RX-LIGHT 413
- BOOK-THIN 172 in Michigan
- PHOTO-ENUM Joani Christensen, MD · 2011
Ryan Terlouw, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
413 ≥ 61st percentile 61% 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 certification likely (heuristic, not verified)
Ryan Terlouw, M.D. 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 Ryan Terlouw, M.D.?
Quality data not reportedPrimary specialty
Plastic Surgery Physician
Medicare Part D claims
413 369% vs specialty avg
Specialty distribution in Michigan
How Plastic Surgery 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 Plastic Surgery 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 | 1376833509 |
|---|---|
| Specialty | Plastic Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/08/2011 |
Hospital and facility affiliations
Facilities where Ryan Terlouw, M.D. 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.
Muskegon Surgical Associates PC
Muskegon, 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).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Ryan Terlouw, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$184
Largest payer
Mentor Worldwide LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
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 Ryan Terlouw, M.D.. To verify Ryan Terlouw, M.D.'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 · Generic-heavy
Ryan Terlouw, M.D. - brand share 9.0%
Plastic Surgery Physician average
9% brand-name claims vs 91% generic, on 413 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.
413
Total Claims
$4K
Total Drug Cost
229
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 461.667
- Total Day Supply
- 5,587
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $989
- Generic Drug Cost
- $3K
- Opioid Claims
- 154 (37.3% rate)
- Antibiotic Claims
- 100
Patient Demographics
- Average Patient Age
- 72.1 years
- Avg HCC Risk Score
- 1.78
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 44, 65-74: 96, 75-84: 58, 85+: 31
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Ryan Terlouw, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Tramadol Hcl
Tramadol Hcl
85 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
61 claims
- Cephalexin
Cephalexin
59 claims
- Fluorouracil 28
Fluorouracil
28 claims
- Diazepam 25
Diazepam
25 claims
- Ssd 25
Ssd
25 claims
- Meloxicam 16
Meloxicam
16 claims
- Doxycycline Monohy… 13
Doxycycline Monohydrate
13 claims
| Drug | Claims |
|---|---|
| Tramadol Hcl | 85 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 61 |
| Cephalexin | 59 |
| Fluorouracil | 28 |
| Diazepam | 25 |
| Ssd Silver Sulfadiazine | 25 |
| Meloxicam | 16 |
| Doxycycline Monohydrate | 13 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Plastic Surgery Physician Overview
How Ryan Terlouw, M.D. fits within the Plastic Surgery Physician landscape nationally.
5,431
Plastic Surgery Physician Providers in US
53
States with Plastic Surgery Physician
88
Avg Claims per Provider
Ryan Terlouw, M.D.'s 413 claims are above the specialty average of 88.
Nationwide Plastic Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Terlouw, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2011)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Plastic Surgery Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Terlouw.
One of 172 Plastic Surgery Physician providers enrolled in Michigan, 5 are shown here.
Dr. Senan Abdul-Hamed
MD
East Lansing, MI
Dr. Marguerite Aitken
M.D.
Grand Rapids, MI
Dr. Silvy Akrawe
MD
Novi, MI
Dr. David Alfonso
M.D.
Grand Rapids, MI
Dr. Abd Alghanem
M.D.
Flint, MI
Compare Plastic Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ryan Terlouw, M.D.'s specialty? ▼
Ryan Terlouw, M.D. specializes in Plastic Surgery Physician and practices in Muskegon, Michigan. Credentials: M.D..
How much does Ryan Terlouw, M.D. prescribe under Medicare Part D? ▼
In 2024, Ryan Terlouw, M.D. wrote 413 Medicare Part D claims totaling $4K in drug costs for 229 beneficiaries.
Where is Ryan Terlouw, M.D. located? ▼
Ryan Terlouw, M.D. is located at 1675 PATRIOT DR, Muskegon, MI, 49444. Phone: (231) 739-1933.
What is Ryan Terlouw, M.D.'s NPI number? ▼
Ryan Terlouw, M.D.'s National Provider Identifier (NPI) is 1376833509, issued on 04/08/2011.
Does Ryan Terlouw, M.D. prescribe more brand-name or generic drugs? ▼
Ryan Terlouw, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $989 in brand drug costs.
Does Ryan Terlouw, M.D. prescribe opioids? ▼
Yes, Ryan Terlouw, M.D. had 154 opioid claims in 2024 with an opioid prescribing rate of 37.3%.
How many Plastic Surgery Physician providers are there in the US? ▼
There are 5,431 Plastic Surgery Physician providers across 53 states in the US. The average Plastic Surgery Physician provider writes 88 Medicare Part D claims per year.
What drugs does Ryan Terlouw, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ryan Terlouw, M.D.'s most frequently prescribed drugs include Tramadol Hcl, Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ryan Terlouw, M.D. accept Medicare? ▼
Ryan Terlouw, M.D. appears in CMS Medicare data with 413 Part D claims and 229 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ryan Terlouw, M.D.'s credentials? ▼
Ryan Terlouw, M.D.'s NPI is 1376833509 with credentials M.D.. 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.