Mark Coslow, PA
NPI 1558433730 · Physician Assistant · Marietta, OH
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Coslow, PA is a Physician Assistant provider in Marietta, OH (NPI 1558433730).
Provider details
- NPI number
- 1558433730
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 50-00-0962 (OH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
181 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 134 | $148 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 47 | $103 |
Typical Medicare-allowed amounts for these services range $103–$148 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 32 | 31 |
| Ondansetronbrand: Ondansetron Odt | 31 | 31 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 23 | 21 |
| Prednisone | 19 | 19 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 17 | 17 |
| Cefdinir | 16 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Coslow's NPI number?
- Mark Coslow's National Provider Identifier (NPI) is 1558433730, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Coslow's specialty?
- Mark Coslow is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Coslow located?
- Mark Coslow's practice location on file with NPPES is 401 Matthew St, Marietta, OH 45750-1635.
- What is Mark Coslow's phone number?
- The practice phone number listed in the NPPES registry for Mark Coslow is (740) 374-1400.
- Does Mark Coslow accept Medicare?
- Mark Coslow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Coslow's NPI active?
- Yes — Mark Coslow's NPI (1558433730) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.