NPPES file of Aug 9, 2026

Michael Christopher Greaser, MD

Orthopaedic Foot and Ankle Surgery Physician · Bellaire, TX

Michael Christopher Greaser, MD is an orthopaedic foot and ankle surgery physician with a practice address in Bellaire, Texas, and NPI 1811156979, issued on Jun 4, 2008. Check the license (Texas N9708, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811156979
Name
Michael Christopher Greaser
Credential
MD
Primary taxonomy
Orthopaedic Foot and Ankle Surgery Physician 207XX0004X
License number
N9708 TX
Self-reported in NPPES; status is on the state search
Practice location
5420 West Loop S Ste 2400, Bellaire, TX 77401
Phone
(134) 863-5507
Enumerated
Jun 4, 2008
Record last updated
Jul 16, 2022
Medicaid IDs
NC1792 SC
5922842 NC
Medicare enrollment
Enrolled (PECOS I20140723000454); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5420 West Loop S Ste 2400

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nida Ali, PA-CPhysician Assistant1164818647
  2. Ernest Conrad, MDOrthopaedic Surgery Physician1023194883
  3. David DohertyAdult Reconstructive Orthopaedic Surgery Physician1528333770
  4. Megan Frank, PA-CPhysician Assistant1649721424
  5. Erica Giles, MDOrthopaedic Surgery Physician1952854002
  6. William Hadnott, MDOrthopaedic Surgery Physician1194832709

Verify Michael Christopher Greaser in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N9708
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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82% more Medicare Part D claims than the average orthopaedic foot and ankle surgery physician in 2024

409 Medicare Part D claims for 136 beneficiaries, against an average of 225 among the 648 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 92 claims were for opioids.

  1. Michael Greaser409
  2. Specialty average225

Most prescribed

  1. Gabapentin77 claims
  2. Hydrocodone-Acetaminophen63 claims
  3. Ondansetron Hcl49 claims
  4. Diclofenac Sodium37 claims
  5. Methylprednisolone36 claims
  6. Meloxicam35 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 82.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score79.2
  2. Costout of 100 · 30%58.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $16,449.44

48 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 643 providers of this specialty with any payment received $23,314.63 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Greaser$16,449
  2. Specialty average$23,315

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Action Therapy Centers LimitedHouston, TX
  2. UT PhysiciansSugar Land, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Christopher Greaser among 76 orthopaedic foot and ankle surgery physician records in Texas

Michael Christopher Greaser, MD is one of 76 orthopaedic foot and ankle surgery physician records with a practice address in Texas. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.

  • NPI issued2008 · 59% of these records are older, 38% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 86% of these records are
  • Graduated2008 · median 2003 among the 65 with a school on file
  • Record last updated2022 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0004X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Foot and Ankle Surgery Physician providers in Texas

There are 76 orthopaedic foot and ankle surgery physician records in Texas.

The 8 orthopaedic foot and ankle surgery physician records with the nearest ZIP codes

  1. Hibba Aziz, MDShenandoah, TX 773841396165759
  2. Meena Shatby, MDThe Woodlands, TX 773801922166040
  3. Matthew Hammit, M.D.Tomball, TX 773751235134362
  4. Stacy Bacon, M.D.Cypress, TX 774291013962810
  5. Stephanie Gardner, M.D.Cypress, TX 774291548794936
  6. Rohan Bhimani, MDCypress, TX 774331134897903
  7. Morgan Boren, DOKingwood, TX 773391053816256
  8. John Zhao, MDSugar Land, TX 774791063932291

Common questions

What is Michael Christopher Greaser, MD's NPI number?

Michael Christopher Greaser, MD's National Provider Identifier (NPI) is 1811156979, issued on Jun 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Michael Christopher Greaser, MD located?

The NPPES record lists a practice address at 5420 West Loop S Ste 2400, Bellaire, TX, 77401. Phone: (134) 863-5507. Providers update this record themselves, so call before visiting.

How can I verify Michael Christopher Greaser, MD's license?

NPPES lists Texas license number N9708, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael Christopher Greaser, MD prescribe under Medicare Part D?

In 2024, Michael Christopher Greaser, MD had 409 Medicare Part D claims for 136 beneficiaries; the average among orthopaedic foot and ankle surgery physician prescribers was 225. Part D covers Medicare prescriptions only.

What is Michael Christopher Greaser, MD's MIPS final score?

The 2023 MIPS final score is 82.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.