Mark Clark, M.D.
NPI 1205989605 · Pain Medicine Physician · Norton Shores, MI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Clark, M.D. is a Pain Medicine Physician provider in Norton Shores, MI (NPI 1205989605).
Provider details
- NPI number
- 1205989605
- Entity type
- Individual
- Primary specialty
- Pain Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301055514 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
40 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Testing for Presence of Drug, Read By Direct Observation80305 | 40 | $12 |
Typical Medicare-allowed amounts for these services range $12–$12 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 358 | 55 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 298 | 38 |
| Gabapentin | 264 | 39 |
| Pregabalin | 107 | 14 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 102 | 13 |
| Buprenorphine Hcl | 94 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$82 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-19
- Last updated
- 2022-11-29
- Certified
- 2022-11-29
Frequently asked questions
- What is Mark Clark's NPI number?
- Mark Clark's National Provider Identifier (NPI) is 1205989605, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Clark's specialty?
- Mark Clark is listed in the NPPES registry with a primary specialty of Pain Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Clark located?
- Mark Clark's practice location on file with NPPES is 3735 Norton Hills Rd, Norton Shores, MI 49441-4469.
- What is Mark Clark's phone number?
- The practice phone number listed in the NPPES registry for Mark Clark is (231) 780-0484.
- Does Mark Clark accept Medicare?
- Mark Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Clark's NPI active?
- Yes — Mark Clark's NPI (1205989605) is active in the NPPES registry as of the last update on 2022-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.