Mark Easterday, M.D.
NPI 1891773263 · Internal Medicine Physician · Westerville, OH
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Easterday, M.D. is a Internal Medicine Physician provider in Westerville, OH (NPI 1891773263).
Provider details
- NPI number
- 1891773263
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35-071525 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
32 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $91 |
Typical Medicare-allowed amounts for these services range $91–$91 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 59 | 22 |
| Amlodipine Besylate | 41 | — |
| Apixabanbrand: Eliquis | 26 | — |
| Tamsulosin Hcl | 24 | — |
| Gabapentin | 22 | — |
| Levothyroxine Sodium | 19 | — |
| Tiotropium Bromide |
Practice location
Mailing address
Additional practice locations (1)
- 551 W. Central AveSuite 301Delaware, OH 43015Phone: (740) 615-1800Fax: (740) 615-1801
Registry dates
- Enumerated
- 2006-01-05
- Last updated
- 2022-04-11
- Certified
- 2022-04-08
Frequently asked questions
- What is Mark Easterday's NPI number?
- Mark Easterday's National Provider Identifier (NPI) is 1891773263, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Easterday's specialty?
- Mark Easterday is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Easterday located?
- Mark Easterday's practice location on file with NPPES is 477 Cooper Rd Ste 300, Westerville, OH 43081-8057.
- What is Mark Easterday's phone number?
- The practice phone number listed in the NPPES registry for Mark Easterday is (740) 803-0599.
- Does Mark Easterday accept Medicare?
- Mark Easterday is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Easterday's NPI active?
- Yes — Mark Easterday's NPI (1891773263) is active in the NPPES registry as of the last update on 2022-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.