Joan Gruninger Thomas, MD
Family Medicine Physician · Reno, NV
Joan Gruninger Thomas, MD is a family medicine physician with a practice address in Reno, Nevada, and NPI 1285736009, issued on Sep 2, 2006. Check the license (Nevada 20014, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joan Gruninger Thomas
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 20014 NV
AA3144 AK
Self-reported in NPPES; status is on the state search - Practice location
- 6570 S Mccarran Blvd, Reno, NV 89509
- Phone
- (775) 982-8256
- Enumerated
- Sep 2, 2006
- Record last updated
- Sep 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (775) 982-8251
- Medicaid ID
- MD3144 AK
- Medicare enrollment
- Enrolled (PECOS I20200921001793); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,243 in Nevada → Look up another NPI →
Also registered at 6570 S Mccarran Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Bajo, MDInternal Medicine Physician1306823687
- Tiffany Barnett, M.D.Family Medicine Physician1871627521
- Derek Beenfeldt, M.D,Family Medicine Physician1780973891
- Jane Konakis, MDFamily Medicine Physician1215935762
- Cecilia O'Dowd, M.D.Family Medicine Physician1154414795
- Lee Vanepps, MDInternal Medicine Physician1548306582
Verify Joan Gruninger Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 20014Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average family medicine physician in 2024
3,394 Medicare Part D claims for 417 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Levothyroxine Sodium257 claims
- Atorvastatin Calcium230 claims
- Lisinopril208 claims
- Amlodipine Besylate151 claims
- Losartan Potassium129 claims
- Lovastatin125 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
- Hometown Health Management CompanySparks, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joan Gruninger Thomas among 1,243 family medicine physician records in Nevada
Joan Gruninger Thomas, MD is one of 1,243 family medicine physician records with a practice address in Nevada. 77% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1984 · median 2008 among the 726 with a school on file
- Record last updated2020 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
211 family medicine physician records list a practice address in Reno
They are 211 of the 11,565 NPPES records with a practice address in Reno, and 1,243 family medicine physician records in Nevada.
All 1,243 in Nevada → Every provider in Reno → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Porfirio Aguiar, M.D.Reno, NV 895091649227240
- Howard Chen, M.D.Reno, NV 895091841201530
- Edgar Cox, MDReno, NV 895091629140736
- Katie Dolan, MDReno, NV 895091396718342
- Pamela Gordon, M.D.Reno, NV 895091124013206
- Leslie Greenberg, MDReno, NV 895091184629230
- John Hess, MDReno, NV 895091730152364
- Jane Konakis, MDReno, NV 895091215935762
Common questions
What is Joan Gruninger Thomas, MD's NPI number?
Joan Gruninger Thomas, MD's National Provider Identifier (NPI) is 1285736009, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joan Gruninger Thomas, MD located?
The NPPES record lists a practice address at 6570 S Mccarran Blvd, Reno, NV, 89509. Phone: (775) 982-8256. Providers update this record themselves, so call before visiting.
How can I verify Joan Gruninger Thomas, MD's license?
NPPES lists Nevada license number 20014, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joan Gruninger Thomas, MD prescribe under Medicare Part D?
In 2024, Joan Gruninger Thomas, MD had 3,394 Medicare Part D claims for 417 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.