Tong Gan, M.D.
Colon & Rectal Surgery Physician · Grand Rapids, MI
Tong Gan, M.D. is a colon & rectal surgery physician with a practice address in Grand Rapids, Michigan, and NPI 1275941791, issued on Jul 28, 2014. Check the license (Michigan 4301507236, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Tong Gan
- Credential
- M.D.
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- 4301507236 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4100 Lake Dr SE Ste 205, Grand Rapids, MI 49546
- Phone
- (616) 267-7100
- Enumerated
- Jul 28, 2014
- Record last updated
- Oct 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20220809001589); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 87 in Michigan → Look up another NPI →
Also registered at 4100 Lake Dr SE Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeremy Barber, D.O.Gastroenterology Physician1417177866
- Catherine Bartnik, MD, MPHGastroenterology Physician1548688773
- Thomas Beverwyk, PA-CPhysician Assistant1699001156
- Patrick Brown, DOGastroenterology Physician1396108320
- Kylie Butchart, PA-CPhysician Assistant1427622182
- Jared Courtright, PAPhysician Assistant1265073027
Verify Tong Gan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301507236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% more Medicare Part D claims than the average colon & rectal surgery physician in 2024
358 Medicare Part D claims for 220 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 46 claims were for opioids.
Most prescribed
- Peg 3350-Electrolyte113 claims
- Metronidazole52 claims
- Neomycin Sulfate38 claims
- Hydrocortisone34 claims
- Oxycodone Hcl26 claims
- Ciprofloxacin Hcl12 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: $238.32
7 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 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
- Spectrum Health Primary Care PartnersGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tong Gan among 87 colon & rectal surgery physician records in Michigan
Tong Gan, M.D. is one of 87 colon & rectal surgery physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 79% of them.
- NPI issued2014 · 79% of these records are older, 16% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2014 · median 2004 among the 63 with a school on file
- Record last updated2022 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in Michigan
There are 87 colon & rectal surgery physician records in Michigan.
All 87 in Michigan → Every provider in Grand Rapids → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Rebecca Hoedema, MDGrand Rapids, MI 495461568419745
- Katherine Kelley, M.D.Grand Rapids, MI 495461245598820
- Martin Luchtefeld, MDGrand Rapids, MI 495461124069703
- James Ogilvie, MDGrand Rapids, MI 495461467409029
- Michael Ott, M.D.Grand Rapids, MI 495461861515504
- Arida Siripong, MDGrand Rapids, MI 495461386807782
- Heather Slay, MDGrand Rapids, MI 495461154378404
- Adnan Qureshi, MD, MSCGrand Rapids, MI 495061841716073
Common questions
What is Tong Gan, M.D.'s NPI number?
Tong Gan, M.D.'s National Provider Identifier (NPI) is 1275941791, issued on Jul 28, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Tong Gan, M.D. located?
The NPPES record lists a practice address at 4100 Lake Dr SE Ste 205, Grand Rapids, MI, 49546. Phone: (616) 267-7100. Providers update this record themselves, so call before visiting.
How can I verify Tong Gan, M.D.'s license?
NPPES lists Michigan license number 4301507236, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tong Gan, M.D. prescribe under Medicare Part D?
In 2024, Tong Gan, M.D. had 358 Medicare Part D claims for 220 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.