Robert Nelson Chaffin, DDS
General Practice Dentistry · San Antonio, TX
Robert Nelson Chaffin, DDS is a general practice dentistry with a practice address in San Antonio, Texas, and NPI 1639332901, issued on Jul 8, 2008. Check the license (Texas 18656, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert Nelson Chaffin
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 18656 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2935 Thousand Oaks, San Antonio, TX 78247
- Phone
- (210) 545-6699
- Enumerated
- Jul 8, 2008
- Record last updated
- Jul 8, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (210) 545-6719
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 10,056 in Texas → Look up another NPI →
Verify Robert Nelson Chaffin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 18656Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average general practice dentistry in 2024
39 Medicare Part D claims for 29 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin37 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: $294.45
6 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 41,669 providers of this specialty with any payment received $597.01 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.
Robert Nelson Chaffin among 10,056 general practice dentistry records in Texas
Robert Nelson Chaffin, DDS is one of 10,056 general practice dentistry records with a practice address in Texas. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 48% of them.
- NPI issued2008 · 48% of these records are older, 47% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2008 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
752 general practice dentistry records list a practice address in San Antonio
They are 752 of the 37,749 NPPES records with a practice address in San Antonio, and 10,056 general practice dentistry records in Texas.
All 10,056 in Texas → Every provider in San Antonio → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Cedric Alvarez, DDSSan Antonio, TX 782471609974989
- Sheryl Beltrane, DDSSan Antonio, TX 782471083744650
- Steve Edwards, D.D.S.San Antonio, TX 782471356567283
- Hector Garza, D.D.S.San Antonio, TX 782471881755460
- Stephen Heggie, DMDSan Antonio, TX 782471538474572
- Cheryl Hubble, DDSSan Antonio, TX 782471437290459
- Ghias Jabbour, DDSSan Antonio, TX 782471790768661
- Joel LambertSan Antonio, TX 782471891855805
Common questions
What is Robert Nelson Chaffin, DDS's NPI number?
Robert Nelson Chaffin, DDS's National Provider Identifier (NPI) is 1639332901, issued on Jul 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Robert Nelson Chaffin, DDS located?
The NPPES record lists a practice address at 2935 Thousand Oaks, San Antonio, TX, 78247. Phone: (210) 545-6699. Providers update this record themselves, so call before visiting.
How can I verify Robert Nelson Chaffin, DDS's license?
NPPES lists Texas license number 18656, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Robert Nelson Chaffin, DDS prescribe under Medicare Part D?
In 2024, Robert Nelson Chaffin, DDS had 39 Medicare Part D claims for 29 beneficiaries; the average among general practice dentistry prescribers was 83. 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.