Nicholas Namwon Back, M.D.
Anesthesiology Physician · Pasadena, CA
Nicholas Namwon Back, M.D. is an anesthesiology physician with a practice address in Pasadena, California, and NPI 1548467962, issued on Jun 29, 2007. Check the license (California A105946, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nicholas Namwon Back
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A105946 CA
Self-reported in NPPES; status is on the state search - Practice location
- 225 S Lake Ave, Pasadena, CA 91101
- Phone
- (626) 639-6214
- Enumerated
- Jun 29, 2007
- Record last updated
- Jan 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (626) 240-4990
- Medicare enrollment
- Enrolled (PECOS I20110713000794); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 225 S Lake Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Bergstrom, M.D.Anesthesiology Physician1144425141
- David Blake, M.D.Anesthesiology Physician1326054255
- Imani BowersBehavior Technician1588383186
- Deborah Edgar, MFTMarriage & Family Therapist1649390873
- Dina ElzanatyBehavior Technician1700511748
- Rita FosterBehavior Technician1083345581
Verify Nicholas Namwon Back in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A105946Check 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: $158.30
2 payments; by number, the most common kind was food and beverage; the largest payer was Fisher & Paykel Healthcare Inc. The 17,774 providers of this specialty with any payment received $669.59 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
- Buena Vista Anesthesia Medical GroupBurbank, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Namwon Back among 7,571 anesthesiology physician records in California
Nicholas Namwon Back, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 43% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2007 · median 2006 among the 4,868 with a school on file
- Record last updated2016 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Pasadena → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Eric Bergstrom, M.D.Pasadena, CA 911011144425141
- David Blake, M.D.Pasadena, CA 911011326054255
- Marie Csete, MD PHDPasadena, CA 911011730114653
- Mylene Matti, M.D.Pasadena, CA 911011134181506
- Edwin Mirzabeigi, M.D.Pasadena, CA 911011184865404
- Emil Saify, M.D.Pasadena, CA 911011962459347
- Catherine Schulz, MDPasadena, CA 911011679672489
- Andrew Aung, M.D.Pasadena, CA 911031861635278
Common questions
What is Nicholas Namwon Back, M.D.'s NPI number?
Nicholas Namwon Back, M.D.'s National Provider Identifier (NPI) is 1548467962, issued on Jun 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Namwon Back, M.D. located?
The NPPES record lists a practice address at 225 S Lake Ave, Pasadena, CA, 91101. Phone: (626) 639-6214. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Namwon Back, M.D.'s license?
NPPES lists California license number A105946, 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.