Stephen Tang, M.D.
Pediatrics Physician · Rancho Santa Margarita, CA
Stephen Tang, M.D. is a pediatrics physician with a practice address in Rancho Santa Margarita, California, and NPI 1750487401, issued on Sep 16, 2006. Check the license (California A45947, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Tang
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A45947 CA
Self-reported in NPPES; status is on the state search - Practice location
- 29941 Aventura, Rancho Santa Margarita, CA 92688
- Phone
- (949) 858-1100
- Enumerated
- Sep 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 29941 Aventura
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeanne Nguyen, D.D.SPediatric Dentistry1093971475
- Michael Weiss, D.O.Pediatrics Physician1871699520
Verify Stephen Tang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A45947Check 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: $351.67
5 payments; by number, the most common kind was food and beverage; the largest payer was Biosense Webster, Inc. The 21,580 providers of this specialty with any payment received $842.05 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.
Stephen Tang among 9,272 pediatrics physician records in California
Stephen Tang, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2007 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 pediatrics physician records list a practice address in Rancho Santa Margarita
They are 9 of the 479 NPPES records with a practice address in Rancho Santa Margarita, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Rancho Santa Margarita → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Antoinette Delvalle, D.O.Rancho Santa Margarita, CA 926881285826248
- Cynthia Dimalanta, MDRancho Santa Margarita, CA 926881649310608
- Daizy Engineer, MDRancho Santa Margarita, CA 926881467442897
- Bonnie Pittaluga, MDRancho Santa Margarita, CA 926881437135019
- Shruti Vora, M.D.Rancho Santa Margarita, CA 926881881014686
- Michael Weiss, D.O.Rancho Santa Margarita, CA 926881871699520
- Eric Wong, MDRancho Santa Margarita, CA 926881104808161
- Rose Yson-Zaragoza, M.D.Rancho Santa Margarita, CA 926881811093578
Common questions
What is Stephen Tang, M.D.'s NPI number?
Stephen Tang, M.D.'s National Provider Identifier (NPI) is 1750487401, issued on Sep 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Tang, M.D. located?
The NPPES record lists a practice address at 29941 Aventura, Rancho Santa Margarita, CA, 92688. Phone: (949) 858-1100. Providers update this record themselves, so call before visiting.
How can I verify Stephen Tang, M.D.'s license?
NPPES lists California license number A45947, 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.
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.