Gregory Masimore, MD
NPI 1104878982 · Pain Medicine Physician · Greenwood, IN
Enrolled with Medicare as Practitioner - Pain Management · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Masimore, MD is a Pain Medicine Physician provider in Greenwood, IN (NPI 1104878982).
Provider details
- NPI number
- 1104878982
- Entity type
- Individual
- Primary specialty
- Pain Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 01042621A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
394 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 | 383 | $118 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 11 | $155 |
Typical Medicare-allowed amounts for these services range $118–$155 (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 |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 612 | 83 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 447 | 54 |
| Baclofen | 437 | 91 |
| Gabapentin | 385 | 55 |
| Oxycodone Hcl | 352 | 50 |
| Duloxetine Hcl | 228 | 34 |
| Diclofenac Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-17
- Last updated
- 2017-12-13
Frequently asked questions
- What is Gregory Masimore's NPI number?
- Gregory Masimore's National Provider Identifier (NPI) is 1104878982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Masimore's specialty?
- Gregory Masimore is listed in the NPPES registry with a primary specialty of Pain Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Masimore located?
- Gregory Masimore's practice location on file with NPPES is 730 Executive Park Dr Ste a, Greenwood, IN 46143-3213.
- What is Gregory Masimore's phone number?
- The practice phone number listed in the NPPES registry for Gregory Masimore is (317) 346-7246.
- Does Gregory Masimore accept Medicare?
- Gregory Masimore is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Masimore's NPI active?
- Yes — Gregory Masimore's NPI (1104878982) is active in the NPPES registry as of the last update on 2017-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.