Matthew James Isom, M.D.
Obstetrics Physician · Katy, TX
Matthew James Isom, M.D. is an obstetrics physician with a practice address in Katy, Texas, and NPI 1346287877, issued on Jun 1, 2006. Check the license (Texas M4196, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Matthew James Isom
- Credential
- M.D.
- Primary taxonomy
- Obstetrics Physician 207VX0000X
- License number
- M4196 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2510 W. Grand Parkway, Katy, TX 77449
- Phone
- (713) 442-4222
- Enumerated
- Jun 1, 2006
- Record last updated
- Jun 8, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid IDs
- 212118808 TX
212118807 TX
212118806 TX - Entity
- Type 1 · individual
8 nearest obstetrics physician records → All 103 in Texas → Look up another NPI →
Verify Matthew James Isom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M4196Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average obstetrics physician in 2024
38 Medicare Part D claims for 15 beneficiaries, against an average of 218 among the 863 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Industry payments in 2024: $236.18
8 payments; by number, the most common kind was food and beverage; the largest payer was Organon Llc. The 679 providers of this specialty with any payment received $826.19 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.
Matthew James Isom among 103 obstetrics physician records in Texas
Matthew James Isom, M.D. is one of 103 obstetrics physician records with a practice address in Texas. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 54% of these records are
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics Physician providers in Texas
There are 103 obstetrics physician records in Texas.
All 103 in Texas → Every provider in Katy → Obstetrics Physician nationwide →
The 8 obstetrics physician records with the nearest ZIP codes
- Amber Dobyne, M.D.Richmond, TX 774691164749750
- Kathryn Karges, MDSugar Land, TX 774781396981825
- Liliana Kanu, M.D.Pasadena, TX 775041992026470
- John Durst, M.D.The Woodlands, TX 773801013932540
- Tametra Garnier, MDShenandoah, TX 773801306082847
- Jane Reed, M.D.The Woodlands, TX 773801306824701
- Ebonee Hayward, DOTomball, TX 773751861078818
- Christopher Glenn, M.D.Kingwood, TX 773391992786149
Common questions
What is Matthew James Isom, M.D.'s NPI number?
Matthew James Isom, M.D.'s National Provider Identifier (NPI) is 1346287877, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew James Isom, M.D. located?
The NPPES record lists a practice address at 2510 W. Grand Parkway, Katy, TX, 77449. Phone: (713) 442-4222. Providers update this record themselves, so call before visiting.
How can I verify Matthew James Isom, M.D.'s license?
NPPES lists Texas license number M4196, 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 Matthew James Isom, M.D. prescribe under Medicare Part D?
In 2024, Matthew James Isom, M.D. had 38 Medicare Part D claims for 15 beneficiaries; the average among obstetrics physician prescribers was 218. Part D covers Medicare prescriptions only.
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.