John P. Thalken, MD
Internal Medicine Physician · Douglas, WY
John P. Thalken, MD is an internal medicine physician with a practice address in Douglas, Wyoming, and NPI 1912007212, issued on Sep 25, 2006. Check the license (Wyoming 3634A, as entered in NPPES) on the Wyoming Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John P. Thalken
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 3634A WY
Self-reported in NPPES; status is on the state search - Practice location
- 111 S 5TH St, Douglas, WY 82633
- Phone
- (307) 358-2122
- Enumerated
- Sep 25, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (307) 358-9216
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 134 in Wyoming → Look up another NPI →
Also registered at 111 S 5TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Oscar Aguirre, PAMedical Physician Assistant1821125493
- Aaron Bernal, DPTPhysical Therapist1043867872
- Sarah Boner, DPTPhysical Therapist1417337726
- Jason Budd, EMT-P, CP-CParamedic1992461313
- Melissa Bulkley, APRN, FNP-CFamily Nurse Practitioner1811447956
- Craig Capron, DPMFoot & Ankle Surgery Podiatrist1932118189
Verify John P. Thalken in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWyoming Board of Medicine
Search for license 3634ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,424 Medicare Part D claims for 159 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 66 claims were for opioids.
Most prescribed
- Furosemide187 claims
- Levothyroxine Sodium139 claims
- Potassium Chloride105 claims
- Eliquis97 claims
- Atorvastatin Calcium90 claims
- Lisinopril84 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 71.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
John P. Thalken among 134 internal medicine physician records in Wyoming
John P. Thalken, MD is one of 134 internal medicine physician records with a practice address in Wyoming. 73% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2007 · 57% 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 Wyoming practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 internal medicine physician records list a practice address in Douglas
They are 3 of the 227 NPPES records with a practice address in Douglas, and 134 internal medicine physician records in Wyoming.
All 134 in Wyoming → Every provider in Douglas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rita Emch, M.D.Douglas, WY 826331285661629
- Michelle Neice, MDDouglas, WY 826331770926909
- Thomas Burke, M.D.Casper, WY 826091952335846
- Ricardo Caldas, DOCasper, WY 826091326741612
- Maxim Salva, MDCasper, WY 826041932395944
- Paul Bettinger, M.D.Casper, WY 826011346201076
- David Butler, MDCasper, WY 826011699861518
- David Erk, MDCasper, WY 826011396713046
Common questions
What is John P. Thalken, MD's NPI number?
John P. Thalken, MD's National Provider Identifier (NPI) is 1912007212, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John P. Thalken, MD located?
The NPPES record lists a practice address at 111 S 5TH St, Douglas, WY, 82633. Phone: (307) 358-2122. Providers update this record themselves, so call before visiting.
How can I verify John P. Thalken, MD's license?
NPPES lists Wyoming license number 3634A, as entered by the provider. Search the Wyoming Board of Medicine at https://wyomedboard.wyo.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John P. Thalken, MD prescribe under Medicare Part D?
In 2024, John P. Thalken, MD had 2,424 Medicare Part D claims for 159 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John P. Thalken, MD's MIPS final score?
The 2023 MIPS final score is 71.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.