Diana Chen, DO
Internal Medicine Physician · Houston, TX
Diana Chen, DO is an internal medicine physician with a practice address in Houston, Texas, and NPI 1427547488, issued on May 5, 2018. Check the license (Texas T1318, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Diana Chen
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- T1318 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1701 Sunset Blvd, Houston, TX 77005
- Phone
- (713) 526-5511
- Enumerated
- May 5, 2018
- Record last updated
- Jul 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (713) 520-4755
- Medicare enrollment
- Enrolled (PECOS I20210719000209); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1701 Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arup Achari, MDCardiovascular Disease Physician1538146022
- Nagham Al-Zubidi, MDNeurology Physician1619265717
- Mujahed Alikhan, M.D.Rheumatology Physician1396924106
- Shilka Babu, MDInternal Medicine Physician1407413651
- Mazen Barbandi, MDHospitalist Physician1659522928
- Garth Beinart, M.D.Medical Oncology Physician1396844262
Verify Diana Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license T1318Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
90 Medicare Part D claims for 34 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% 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.
Bills Medicare through one group practice
- Medical Center Hospitalist Associates PLLCHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Chen among 9,175 internal medicine physician records in Texas
Diana Chen, DO is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.
- NPI issued2018 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2018 · median 2004 among the 6,088 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,488 internal medicine physician records list a practice address in Houston
They are 1,488 of the 61,221 NPPES records with a practice address in Houston, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Houston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christopher Finnila, MDHouston, TX 770051306823869
- Raymond Hamill, MDHouston, TX 770051376520833
- Karen Hoermann, MDHouston, TX 770051437136900
- Bhakti Khatri, MDHouston, TX 770051043297518
- Matthew Lenz, MDHouston, TX 770051023095593
- Jonathan Magid, MDHouston, TX 770051114904687
- Jennifer Meyer, MDHouston, TX 770051295712768
- Christopher Nevins, MDHouston, TX 770051376520841
Common questions
What is Diana Chen, DO's NPI number?
Diana Chen, DO's National Provider Identifier (NPI) is 1427547488, issued on May 5, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Diana Chen, DO located?
The NPPES record lists a practice address at 1701 Sunset Blvd, Houston, TX, 77005. Phone: (713) 526-5511. Providers update this record themselves, so call before visiting.
How can I verify Diana Chen, DO's license?
NPPES lists Texas license number T1318, 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 Diana Chen, DO prescribe under Medicare Part D?
In 2024, Diana Chen, DO had 90 Medicare Part D claims for 34 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.