James Parker Gregg, MD
Diagnostic Radiology Physician · Houston, TX
James Parker Gregg, MD is a diagnostic radiology physician with a practice address in Houston, Texas, and NPI 1518100049, issued on Apr 14, 2009. Check the license (Texas N5694, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Parker Gregg
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- N5694 TX
Self-reported in NPPES; status is on the state search - Practice location
- 7026 Old Katy RD Ste 276, Houston, TX 77024
- Phone
- (713) 621-7436
- Enumerated
- Apr 14, 2009
- Record last updated
- Apr 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 216120006 (MDACC) TX
- Medicare enrollment
- Enrolled (PECOS I20101027001306); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2002
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 3,124 in Texas → Look up another NPI →
Also registered at 7026 Old Katy RD Ste 276
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamile Alexander, MDDiagnostic Radiology Physician1588645634
- Samad Ali, PA-CPhysician Assistant1376171587
- Samuel Baird, MDDiagnostic Radiology Physician1467442939
- Ahmad Bakdalieh, MDDiagnostic Radiology Physician1861874646
- Amitabha Banerjee, M.D.Diagnostic Radiology Physician1588653083
- Aaron Baxter, M.D.Vascular & Interventional Radiology Physician1912221821
Verify James Parker Gregg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N5694Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 83.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $394.15
3 payments; by number, the most common kind was food and beverage; the largest payer was TriSalus Life Sciences, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Eagle Partners PLLCHouston, TX
- Singleton Associates PALake Jackson, TX
- Sonoran Radiology LtdHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Parker Gregg among 3,124 diagnostic radiology physician records in Texas
James Parker Gregg, MD is one of 3,124 diagnostic radiology physician records with a practice address in Texas. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.
- NPI issued2009 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2002 · median 2003 among the 2,277 with a school on file
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
823 diagnostic radiology physician records list a practice address in Houston
They are 823 of the 61,221 NPPES records with a practice address in Houston, and 3,124 diagnostic radiology physician records in Texas.
All 3,124 in Texas → Every provider in Houston → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Prafulchandra Amin, M.D.Houston, TX 770241518958073
- Samuel Baird, MDHouston, TX 770241467442939
- Amitabha Banerjee, M.D.Houston, TX 770241588653083
- Munish Chawla, M.D.Houston, TX 770241720084726
- Stephen DaltonHouston, TX 770241154327062
- Richard Frachtman, M.D.Houston, TX 770241326041161
- David Garza, MDHouston, TX 770241255328316
- Khanh Huynh, M.D.Houston, TX 770241558364364
Common questions
What is James Parker Gregg, MD's NPI number?
James Parker Gregg, MD's National Provider Identifier (NPI) is 1518100049, issued on Apr 14, 2009. An NPI identifies a provider in billing; it is not a license.
Where is James Parker Gregg, MD located?
The NPPES record lists a practice address at 7026 Old Katy RD Ste 276, Houston, TX, 77024. Phone: (713) 621-7436. Providers update this record themselves, so call before visiting.
How can I verify James Parker Gregg, MD's license?
NPPES lists Texas license number N5694, 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.
What is James Parker Gregg, MD's MIPS final score?
The 2023 MIPS final score is 83.1 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.