James S. Williams, MD
Emergency Medicine Physician · Big Lake, TX
James S. Williams, MD is an emergency medicine physician with a practice address in Big Lake, Texas, and NPI 1447353750, issued on Sep 6, 2006. Check the license (Texas P0517, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James S. Williams
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- P0517 TX
38641 WI
Self-reported in NPPES; status is on the state search - Practice location
- 800 N Main Ave, Big Lake, TX 76932
- Phone
- (325) 481-2183
- Enumerated
- Sep 6, 2006
- Record last updated
- Dec 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 800 N Main Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Farah Sears, FNP-CFamily Nurse Practitioner1831730696
Verify James S. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P0517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average emergency medicine physician in 2024
514 Medicare Part D claims for 49 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 22 claims were for opioids.
Most prescribed
- Levothyroxine Sodium38 claims
- Sertraline Hcl31 claims
- Gabapentin29 claims
- Atorvastatin Calcium24 claims
- Furosemide20 claims
- Metformin Hcl20 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.
James S. Williams among 4,885 emergency medicine physician records in Texas
James S. Williams, MD is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% 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, 67% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2019 · 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 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 emergency medicine physician record lists a practice address in Big Lake
They are 1 of the 11 NPPES records with a practice address in Big Lake, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Big Lake → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Michael Neal, M.D.Mertzon, TX 769411972528974
- Marvin Carroll, MDSan Angelo, TX 769041073547451
- Benjamin Crabb, M.D.San Angelo, TX 769041891981536
- Mark Davis, MDSan Angelo, TX 769041831129097
- David Herbert, M.D.San Angelo, TX 769041215957873
- James Moyer, MDSan Angelo, TX 769041669497608
- Michael Strayer, MDSan Angelo, TX 769041043424021
- Cameron Arakaki, DOSan Angelo, TX 769031457098246
Common questions
What is James S. Williams, MD's NPI number?
James S. Williams, MD's National Provider Identifier (NPI) is 1447353750, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James S. Williams, MD located?
The NPPES record lists a practice address at 800 N Main Ave, Big Lake, TX, 76932. Phone: (325) 481-2183. Providers update this record themselves, so call before visiting.
How can I verify James S. Williams, MD's license?
NPPES lists Texas license number P0517, 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 James S. Williams, MD prescribe under Medicare Part D?
In 2024, James S. Williams, MD had 514 Medicare Part D claims for 49 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.