Sylvia Tan, M.D.
Internal Medicine Physician · Guymon, OK
Sylvia Tan, M.D. is an internal medicine physician with a practice address in Guymon, Oklahoma, and NPI 1700809720, issued on Jul 25, 2006. Check the license (Oklahoma 19772, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Sylvia Tan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 19772 OK
Self-reported in NPPES; status is on the state search - Practice location
- 350 NE 12TH St, Guymon, OK 73942
- Phone
- (580) 338-8700
- Enumerated
- Jul 25, 2006
- Record last updated
- Aug 20, 2024
- Fax
- (580) 338-8600
- Medicaid ID
- 100009120B OK
- Medicare enrollment
- Enrolled (PECOS I20041208000442); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 350 NE 12TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Martin Bautista, M.D.Internal Medicine Physician1144249327
- Robert Williams, M.D.Diagnostic Radiology Physician1073553202
Verify Sylvia Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 19772Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% more Medicare Part D claims than the average internal medicine physician in 2024
4,494 Medicare Part D claims for 373 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 269 claims were for opioids.
Most prescribed
- Atorvastatin Calcium239 claims
- Levothyroxine Sodium208 claims
- Tramadol Hcl164 claims
- Metformin Hcl153 claims
- Gabapentin143 claims
- Pantoprazole Sodium139 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $534.58
26 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Specialty Clinics OF St Anne PLLCGuymon, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sylvia Tan among 1,115 internal medicine physician records in Oklahoma
Sylvia Tan, M.D. is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 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 11% of them.
- NPI issued2006 · 11% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1989 · median 2007 among the 653 with a school on file
- Record last updated2024 · 56% 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 Oklahoma 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 Guymon
They are 3 of the 128 NPPES records with a practice address in Guymon, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Guymon → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Martin Bautista, M.D.Guymon, OK 739421144249327
- Jeffrey Lim, MDGuymon, OK 739421972503241
- Jake Cho, MDBoise City, OK 739331124551999
- Sharron Blaylock, M.D.Bartlesville, OK 740031588628978
- Zeyfoula Beytoula, MDBartlesville, OK 740061144416462
- Samuel Brown, MDBartlesville, OK 740061356340087
- Jerry Jarrell, MDBartlesville, OK 740061194717975
- Joseph Leblanc, M.D.Bartlesville, OK 740061669509758
Common questions
What is Sylvia Tan, M.D.'s NPI number?
Sylvia Tan, M.D.'s National Provider Identifier (NPI) is 1700809720, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sylvia Tan, M.D. located?
The NPPES record lists a practice address at 350 NE 12TH St, Guymon, OK, 73942. Phone: (580) 338-8700. Providers update this record themselves, so call before visiting.
How can I verify Sylvia Tan, M.D.'s license?
NPPES lists Oklahoma license number 19772, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sylvia Tan, M.D. prescribe under Medicare Part D?
In 2024, Sylvia Tan, M.D. had 4,494 Medicare Part D claims for 373 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Sylvia Tan, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.