Teddy Si Youn, M.D.
Neurology Physician · Phoenix, AZ
Teddy Si Youn, M.D. is a neurology physician with a practice address in Phoenix, Arizona, and NPI 1912137985, issued on Jul 23, 2009. Check the license (Arizona 58461, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Teddy Si Youn
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 58461 AZ
ME130279 FL
ML60093624 WA
Self-reported in NPPES; status is on the state search - Practice location
- 240 W Thomas RD # 400, Phoenix, AZ 85013
- Phone
- (602) 406-6262
- Enumerated
- Jul 23, 2009
- Record last updated
- Nov 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (602) 406-6261
- Medicaid ID
- 019236100 FL
- Medicare enrollment
- Enrolled (PECOS I20260113004082); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 458 in Arizona → Look up another NPI →
Also registered at 240 W Thomas RD # 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rinu Abraham, MDNeurology Physician1518353234
- Laurie Bell, NPFamily Nurse Practitioner1891322723
- Ayushi Chugh, M.DNeuromuscular Medicine (Psychiatry & Neurology) Physician1376818229
- Lindsay Frerichs, MDNeurology Physician1952782708
- Timothy Fullam, M.D.Neuromuscular Medicine (Psychiatry & Neurology) Physician1952720104
- Jennifer Gray, PHDPsychologist1508167560
Verify Teddy Si Youn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 58461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $154.27
1 payment: food and beverage; the largest payer was Atricure, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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 2 group practices
- Arizona Acute Medical Services 1 PCPhoenix, AZ
- Link Neuroscience Institute PCOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Teddy Si Youn among 458 neurology physician records in Arizona
Teddy Si Youn, M.D. is one of 458 neurology physician records with a practice address in Arizona. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2016 · median 2005 among the 298 with a school on file
- Record last updated2019 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Arizona
There are 458 neurology physician records in Arizona.
All 458 in Arizona → Every provider in Phoenix → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Richard Burns, M.D.Phoenix, AZ 850131891801593
- Steve Chung, M.D.Phoenix, AZ 850131942317359
- Susan Criswell, MDPhoenix, AZ 850131619993938
- Terry Fife, MDPhoenix, AZ 850131346248390
- James Frey, M.D.Phoenix, AZ 850131275640591
- Abraham Lieberman, M.D.Phoenix, AZ 850131548203573
- Paul Macdonald, M.D.Phoenix, AZ 850131518929249
- Brad Racette, MDPhoenix, AZ 850131174549307
Common questions
What is Teddy Si Youn, M.D.'s NPI number?
Teddy Si Youn, M.D.'s National Provider Identifier (NPI) is 1912137985, issued on Jul 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Teddy Si Youn, M.D. located?
The NPPES record lists a practice address at 240 W Thomas RD # 400, Phoenix, AZ, 85013. Phone: (602) 406-6262. Providers update this record themselves, so call before visiting.
How can I verify Teddy Si Youn, M.D.'s license?
NPPES lists Arizona license number 58461, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.