Mark Thornton, D.O.
NPI 1629203112 · Emergency Medicine Physician · Dayton, OH
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Thornton, D.O. is a Emergency Medicine Physician provider in Dayton, OH (NPI 1629203112).
Provider details
- NPI number
- 1629203112
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 58.002831 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
10 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
140 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 | 72 | $168 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 47 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 21 | $116 |
Typical Medicare-allowed amounts for these services range $8–$168 (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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 20 | 19 |
| Ondansetronbrand: Ondansetron Odt | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (9)
- 1997 Miamisburg Centerville RdCenterville, OH 45459-3811Phone: (937) 401-6228
- 450f Washington Jackson RdEaton, OH 45320-8699Phone: (937) 456-8376
- 100 Kettering WayFranklin, OH 45005-1155Phone: (937) 458-4700
- 8701 Old Troy PikeHuber Heights, OH 45424-1066Phone: (937) 558-3338
- 3535 Southern BlvdKettering, OH 45429-1221Phone: (937) 395-8166
- 4000 Miamisburg Centerville RdMiamisburg, OH 45342-7615Phone: (937) 384-8791
- 6147 State Route 122Middletown, OH 45005-5201Phone: (513) 261-3410
- 1 Kettering WayPiqua, OH 45356-4109Phone: (937) 916-2625
- 600 W Main StTroy, OH 45373-3384Phone: (937) 980-7010
Registry dates
- Enumerated
- 2009-05-27
- Last updated
- 2021-03-31
- Certified
- 2021-03-31
Frequently asked questions
- What is Mark Thornton's NPI number?
- Mark Thornton's National Provider Identifier (NPI) is 1629203112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Thornton's specialty?
- Mark Thornton is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Thornton located?
- Mark Thornton's practice location on file with NPPES is 405 W Grand Ave, Dayton, OH 45405-7538.
- What is Mark Thornton's phone number?
- The practice phone number listed in the NPPES registry for Mark Thornton is (937) 723-3211.
- Does Mark Thornton accept Medicare?
- Mark Thornton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Thornton's NPI active?
- Yes — Mark Thornton's NPI (1629203112) is active in the NPPES registry as of the last update on 2021-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.