Douglas Calvin, M.D.
Internal Medicine Physician · Appleton, WI
Douglas Calvin, M.D. is an internal medicine physician with a practice address in Appleton, Wisconsin, and NPI 1780677906, issued on Aug 23, 2005. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Douglas Calvin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 3925 N Gateway Dr, Appleton, WI 54913
- Phone
- (920) 749-1171
- Enumerated
- Aug 23, 2005
- Entity
- Type 1 · individual
Also registered at 3925 N Gateway Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Avery AllardFamily Nurse Practitioner1154057214
- Andrea Aragon, NPNurse Practitioner1740060797
- Carrie Baum, R.D.Registered Dietitian1154447480
- Emily Beyer, NPNurse Practitioner1720795313
- Daisy Boehm, N.P.Family Nurse Practitioner1194925479
- Renee BrucknerFamily Nurse Practitioner1295614022
Verify Douglas Calvin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
36 Medicare Part D claims for 24 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
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: $2,265.38
7 payments, mostly food and beverage; the largest payer was Carl Zeiss Meditec USA, Inc.. The 65,274 providers of this specialty with any payment received $2,536.66 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.
One hospital or facility affiliation
- State OF Mississippi-University OF Mississippi Medical CenterJackson, MS
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
82 internal medicine physician records list a Appleton practice address
They are 82 of the 3,249 NPPES records with a Appleton practice address, and 2,832 internal medicine physician records in Wisconsin.
All 82 in Appleton → All 2,832 in Wisconsin → Every provider in Appleton →
Other internal medicine physician records in Wisconsin
- Sheetal Aatrai, MDMarshfield, WI1417568965
- Noormuhammad Abbasakoor, M.D.Sheboygan, WI1558645895
- Khalid Abdelgadir, MDManitowoc, WI1407433295
- Kareem Abdelhadi, MDRice Lake, WI1841494432
- Mesfin Abdissa, MDMilwaukee, WI1376579417
- Mohamed Fouzi Abdul Hameed, M.D.Weston, WI1255590899
- Hamza Abdul Majeed, DOMilwaukee, WI1881013282
- Anas Abed, MDMadison, WI1659002566
- Sameem Abedin, MDMilwaukee, WI1063641157
- Vincent Abejuela, DOMilwaukee, WI1356928543
Common questions
What is Douglas Calvin, M.D.'s NPI number?
Douglas Calvin, M.D.'s National Provider Identifier (NPI) is 1780677906, issued on Aug 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Calvin, M.D. located?
The NPPES record lists a practice address at 3925 N Gateway Dr, Appleton, WI, 54913. Phone: (920) 749-1171. Providers update this record themselves, so call before visiting.
How can I verify Douglas Calvin, M.D.'s license?
Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas Calvin, M.D. prescribe under Medicare Part D?
In 2024, Douglas Calvin, M.D. had 36 Medicare Part D claims for 24 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.