Diana Chou, PA-C
Physician Assistant · Katy, TX
Diana Chou, PA-C is a physician assistant with a practice address in Katy, Texas, and NPI 1164820940, issued on Dec 10, 2014. Check the license (Texas PA09490, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Chou
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA09490 TX
Self-reported in NPPES; status is on the state search - Practice location
- 430 S Mason RD Ste 101, Katy, TX 77450
- Phone
- (281) 392-3803
- Enumerated
- Dec 10, 2014
- Entity
- Type 1 · individual
Also registered at 430 S Mason RD Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nalyn AbbsBehavior Technician1447073226
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Verify Diana Chou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license PA09490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
67% fewer Medicare Part D claims than the average physician assistant in 2024
274 Medicare Part D claims for 109 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.
Most prescribed
- Triamcinolone Acetonide52 claims
- Doxycycline Hyclate30 claims
- Ketoconazole20 claims
- Clobetasol Propionate19 claims
- Glycopyrrolate12 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 Medicare quality score for 2023: 97.1 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: $3,723.76
173 payments, mostly food and beverage; the largest payer was Janssen Biotech, Inc.. The 61,144 providers of this specialty with any payment received $853.85 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.
One hospital or facility affiliation
- Robare Dermatology PLLCCypress, TX
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
57 physician assistant records list a Katy practice address
They are 57 of the 5,078 NPPES records with a Katy practice address, and 10,307 physician assistant records in Texas.
All 57 in Katy → All 10,307 in Texas → Every provider in Katy →
Other physician assistant records in Texas
- Neha Aamir, PAPearland, TX1932821808
- Shaghayegh Ababaf, PA-CLewisville, TX1912372145
- Linda Abad, PA-CHouston, TX1063928240
- Hansaa AbbasiDallas, TX1013575679
- Alicia Abbey, MPAS, PA-CSan Antonio, TX1710468145
- Dallah Abdallahi, PADallas, TX1093294811
- Haya AbdellatifGalveston, TX1518409903
- Hillary Abdennassar, PA-CDallas, TX1245991793
- Hodan Abdi, PA-CDallas, TX1558750075
- Lama Abdillahi, PAGalveston, TX1396668604
Common questions
What is Diana Chou, PA-C's NPI number?
Diana Chou, PA-C's National Provider Identifier (NPI) is 1164820940, issued on Dec 10, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Diana Chou, PA-C located?
The NPPES record lists a practice address at 430 S Mason RD Ste 101, Katy, TX, 77450. Phone: (281) 392-3803. Providers update this record themselves, so call before visiting.
How can I verify Diana Chou, PA-C's license?
NPPES lists Texas license number PA09490, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Chou, PA-C prescribe under Medicare Part D?
In 2024, Diana Chou, PA-C had 274 Medicare Part D claims for 109 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
What is Diana Chou, PA-C's Medicare quality score?
The 2023 MIPS final score is 97.1 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.