Timothy Lang Tan, M.D.
Orthopaedic Surgery Physician · Visalia, CA
Timothy Lang Tan, M.D. is an orthopaedic surgery physician with a practice address in Visalia, California, and NPI 1023404910, issued on Apr 8, 2015. Check the license (California A167215, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy Lang Tan
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A167215 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2300 W Sunnyside Ave, Visalia, CA 93277
- Phone
- (559) 731-2009
- Enumerated
- Apr 8, 2015
- Record last updated
- Aug 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (866) 833-7251
- Medicare enrollment
- Enrolled (PECOS I20200821001788); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 2300 W Sunnyside Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Gerardo, NP-CGerontology Nurse Practitioner1023579505
- Karah Gong, PA-CPhysician Assistant1407556624
- Jeremy Kubiak, MDPlastic Surgery Physician1831752013
- Jonathan Liu, M.D.Surgery of the Hand (Surgery) Physician1841376969
- Carola Van Eck, MD, PHD, FAAOSSports Medicine (Orthopaedic Surgery) Physician1871888917
Verify Timothy Lang Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A167215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
636 Medicare Part D claims for 179 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 174 claims were for opioids.
Most prescribed
- Meloxicam214 claims
- Oxycodone Hcl162 claims
- Doxycycline Hyclate80 claims
- Gabapentin72 claims
- Naproxen25 claims
- Cyclobenzaprine Hcl17 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,721.91
20 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 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
- Porterville Community Physicians IncPorterville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Lang Tan among 2,276 orthopaedic surgery physician records in California
Timothy Lang Tan, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.
- NPI issued2015 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2014 · median 2003 among the 1,347 with a school on file
- Record last updated2021 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Visalia → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Seth Criner, D.O.Visalia, CA 932771972824100
- Ian Duncan, MDVisalia, CA 932771982866927
- Bruce Le, DO, MSVisalia, CA 932771558465799
- Burton Redd, MDVisalia, CA 932771437269206
- Donald Schengel, MDVisalia, CA 932771376645895
- Jou Lee, MDTulare, CA 932741316965684
- Frank Feng, DOVisalia, CA 932911730281254
- James Guadagni, M.D.Visalia, CA 932911013913664
Common questions
What is Timothy Lang Tan, M.D.'s NPI number?
Timothy Lang Tan, M.D.'s National Provider Identifier (NPI) is 1023404910, issued on Apr 8, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Lang Tan, M.D. located?
The NPPES record lists a practice address at 2300 W Sunnyside Ave, Visalia, CA, 93277. Phone: (559) 731-2009. Providers update this record themselves, so call before visiting.
How can I verify Timothy Lang Tan, M.D.'s license?
NPPES lists California license number A167215, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy Lang Tan, M.D. prescribe under Medicare Part D?
In 2024, Timothy Lang Tan, M.D. had 636 Medicare Part D claims for 179 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Timothy Lang 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.