Chiamaka Sylvia Diala, MD
Internal Medicine Physician · San Angelo, TX
Chiamaka Sylvia Diala, MD is an internal medicine physician with a practice address in San Angelo, Texas, and NPI 1063114296, issued on Mar 21, 2023. Check the license (Texas W2056, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Chiamaka Sylvia Diala
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- W2056 TX
Self-reported in NPPES; status is on the state search - Practice location
- 120 E Harris Ave, San Angelo, TX 76903
- Phone
- (325) 747-6741
- Enumerated
- Mar 21, 2023
- Record last updated
- Jul 8, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 120 E Harris Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Chiamaka Sylvia Diala in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license W2056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
115 Medicare Part D claims for 43 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Chiamaka Sylvia Diala among 9,175 internal medicine physician records in Texas
Chiamaka Sylvia Diala, MD 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 2023, is newer than 95% of them.
- NPI issued2023 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2026 · 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).
61 internal medicine physician records list a practice address in San Angelo
They are 61 of the 1,796 NPPES records with a practice address in San Angelo, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Angelo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carl Anderton, M.D.San Angelo, TX 769031912999871
- James Barnett, M.D.San Angelo, TX 769031780676411
- Meena Betha, MDSan Angelo, TX 769031699752063
- Paul Borgfeld, M. D.San Angelo, TX 769031104820976
- Anna Goritsas, M.D.San Angelo, TX 769031306896642
- John Harvey, MDSan Angelo, TX 769031811952427
- Ty Hughston, M.D.San Angelo, TX 769031265426027
- Charles Jones, MDSan Angelo, TX 769031023002888
Common questions
What is Chiamaka Sylvia Diala, MD's NPI number?
Chiamaka Sylvia Diala, MD's National Provider Identifier (NPI) is 1063114296, issued on Mar 21, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Chiamaka Sylvia Diala, MD located?
The NPPES record lists a practice address at 120 E Harris Ave, San Angelo, TX, 76903. Phone: (325) 747-6741. Providers update this record themselves, so call before visiting.
How can I verify Chiamaka Sylvia Diala, MD's license?
NPPES lists Texas license number W2056, 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 Chiamaka Sylvia Diala, MD prescribe under Medicare Part D?
In 2024, Chiamaka Sylvia Diala, MD had 115 Medicare Part D claims for 43 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.