Michael Greaser, MD
NPI 1811156979 · Orthopaedic Foot and Ankle Surgery Physician · Bellaire, TX
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Greaser, MD is a Orthopaedic Foot and Ankle Surgery Physician provider in Bellaire, TX (NPI 1811156979).
Provider details
- NPI number
- 1811156979
- Entity type
- Individual
- Primary specialty
- Orthopaedic Foot and Ankle Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- N9708 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
461 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) |
|---|---|---|
| X-Ray of Foot, Minimum of 3 Views73630 | 149 | $34 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 65 | $90 |
| X-Ray of Ankle, Minimum of 3 Views73610 | 60 | $36 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 31 | $165 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 77 | 55 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 63 | 51 |
| Ondansetron Hcl | 49 | 43 |
| Diclofenac Sodium | 37 | 20 |
| Methylprednisolone | 36 | 36 |
| Meloxicam | 35 | 18 |
| Cephalexin | 33 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16,449 across 48 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
- 2008-06-04
- Last updated
- 2022-07-16
- Certified
- 2022-07-16
Frequently asked questions
- What is Michael Greaser's NPI number?
- Michael Greaser's National Provider Identifier (NPI) is 1811156979, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Greaser's specialty?
- Michael Greaser is listed in the NPPES registry with a primary specialty of Orthopaedic Foot and Ankle Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Greaser located?
- Michael Greaser's practice location on file with NPPES is 5420 West Loop S Ste 2400, Bellaire, TX 77401-2118.
- What is Michael Greaser's phone number?
- The practice phone number listed in the NPPES registry for Michael Greaser is (134) 863-5507.
- Does Michael Greaser accept Medicare?
- Michael Greaser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Greaser's NPI active?
- Yes — Michael Greaser's NPI (1811156979) is active in the NPPES registry as of the last update on 2022-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.