Stephen John Chalmers, M.D.
Nephrology Physician · Arlington, TX
Stephen John Chalmers, M.D. is a nephrology physician with a practice address in Arlington, Texas, and NPI 1134166143, issued on May 31, 2006. Check the license (Texas M9916, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Stephen John Chalmers
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- M9916 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1132 S. Bowen RD., Arlington, TX 76013
- Phone
- (817) 265-9700
- Enumerated
- May 31, 2006
- Record last updated
- Aug 18, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (817) 277-4164
- Medicare enrollment
- Enrolled (PECOS I20081014000501); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,159 in Texas → Look up another NPI →
Verify Stephen John Chalmers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M9916Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average nephrology physician in 2024
1,057 Medicare Part D claims for 180 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Prosol104 claims
- Furosemide59 claims
- Amlodipine Besylate57 claims
- Calcitriol57 claims
- Losartan Potassium54 claims
- Hydralazine Hcl50 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: $663.63
27 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Bills Medicare through one group practice
- North Texas Nephrology Associates PAArlington, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen John Chalmers among 1,159 nephrology physician records in Texas
Stephen John Chalmers, M.D. is one of 1,159 nephrology physician records with a practice address in Texas. 89% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 53% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2002 · median 2001 among the 954 with a school on file
- Record last updated2010 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Texas
There are 1,159 nephrology physician records in Texas.
All 1,159 in Texas → Every provider in Arlington → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Michael Jameson, M.DArlington, TX 760131306895347
- Davinder Singh, M.D.Arlington, TX 760131194945592
- Suman Bireddy, M.D.Arlington, TX 760151093765299
- Muhammad Cheema, M.D.Arlington, TX 760151497966329
- Gopal Doshi, MDArlington, TX 760151619978772
- Bhasker Mehta, MDArlington, TX 760151790787612
- Ponnaiah Mohan, MDArlington, TX 760151487646295
- Peter Nguyen, MDArlington, TX 760111790709285
Common questions
What is Stephen John Chalmers, M.D.'s NPI number?
Stephen John Chalmers, M.D.'s National Provider Identifier (NPI) is 1134166143, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen John Chalmers, M.D. located?
The NPPES record lists a practice address at 1132 S. Bowen RD., Arlington, TX, 76013. Phone: (817) 265-9700. Providers update this record themselves, so call before visiting.
How can I verify Stephen John Chalmers, M.D.'s license?
NPPES lists Texas license number M9916, 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 Stephen John Chalmers, M.D. prescribe under Medicare Part D?
In 2024, Stephen John Chalmers, M.D. had 1,057 Medicare Part D claims for 180 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.