Glenn Anthony Tan, M.D.
Obstetrics & Gynecology Physician · Beloit, WI
Glenn Anthony Tan, M.D. is an obstetrics & gynecology physician with a practice address in Beloit, Wisconsin, and NPI 1689692410, issued on Jul 18, 2006. Check the license (Wisconsin 50634, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Glenn Anthony Tan
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 50634 WI
036-119964 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1905 E. Huebbe Parkway, Beloit, WI 53511
- Phone
- (608) 364-2220
- Enumerated
- Jul 18, 2006
- Record last updated
- Oct 20, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (608) 364-2489
- Medicaid ID
- 1689692410 WI
- Medicare enrollment
- Enrolled (PECOS I20070808000254); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →
Also registered at 1905 E. Huebbe Parkway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gary Adamski, MDPediatrics Physician1518977842
- Russell Albert, MDObstetrics & Gynecology Physician1811906738
- Michael Donnelly, DO FACOSUrology Physician1831107671
- Eric Eisenberg, MDGastroenterology Physician1528076353
- Dimitrios Fanopoulos, MD MPHRheumatology Physician1326056094
- William Fitzgerald, MDInternal Medicine Physician1083622021
Verify Glenn Anthony Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 50634Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
148 Medicare Part D claims for 60 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Clobetasol Propionate17 claims
- Paroxetine Hcl17 claims
- Estradiol12 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): 73.1 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).
Industry payments in 2024: $31.92
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Beloit Health System IncBeloit, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Glenn Anthony Tan among 796 obstetrics & gynecology physician records in Wisconsin
Glenn Anthony Tan, M.D. is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% 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, 47% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1988 · median 2007 among the 478 with a school on file
- Record last updated2011 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Wisconsin
There are 796 obstetrics & gynecology physician records in Wisconsin.
All 796 in Wisconsin → Every provider in Beloit → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Russell Albert, MDBeloit, WI 535111811906738
- Robert Harris, M.D.Beloit, WI 535111245544535
- Kerilynn Loftus, MDBeloit, WI 535111629087069
- Cynthia Palabrica, M.D.Beloit, WI 535111265408009
- Prashanti Pilla, M.D.Beloit, WI 535111174704852
- Jamie Turner-Rose, CNMBeloit, WI 535111619657434
- Elana Wistrom, DOBeloit, WI 535111134376486
- Mary Landry, MDBrooklyn, WI 535211750357760
Common questions
What is Glenn Anthony Tan, M.D.'s NPI number?
Glenn Anthony Tan, M.D.'s National Provider Identifier (NPI) is 1689692410, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Glenn Anthony Tan, M.D. located?
The NPPES record lists a practice address at 1905 E. Huebbe Parkway, Beloit, WI, 53511. Phone: (608) 364-2220. Providers update this record themselves, so call before visiting.
How can I verify Glenn Anthony Tan, M.D.'s license?
NPPES lists Wisconsin license number 50634, as entered by the provider. 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 Glenn Anthony Tan, M.D. prescribe under Medicare Part D?
In 2024, Glenn Anthony Tan, M.D. had 148 Medicare Part D claims for 60 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Glenn Anthony Tan, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.1 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.