Nathan Byoungjun Han, MD
Neurological Surgery Physician · San Francisco, CA
Nathan Byoungjun Han, MD is a neurological surgery physician with a practice address in San Francisco, California, and NPI 1417484569, issued on May 20, 2017. Check the license (California A194591, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan Byoungjun Han
- Credential
- MD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- A194591 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Parnassus Ave # A303, San Francisco, CA 94143
- Phone
- (415) 353-3292
- Enumerated
- May 20, 2017
- Record last updated
- Jun 27, 2024
- Medicare enrollment
- Enrolled (PECOS I20240625003345); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 929 in California → Look up another NPI →
Also registered at 400 Parnassus Ave # A303
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tej Azad, MDNeurological Surgery Physician1447711205
- John Burke, MDNeurological Surgery Physician1235519935
- Timothy Chryssikos, MDNeurological Surgery Physician1841673332
- Jay Kumar, MDNeurological Surgery Physician1558850503
- Vignessh Kumar, MDNeurological Surgery Physician1649730359
- Gregory Kuzmik, MDNeurological Surgery Physician1922444371
Verify Nathan Byoungjun Han in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A194591Check 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: $5,518.21
31 payments; by number, the most common kind was food and beverage; the largest payer was Alphatec Spine, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 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
- Hoag ClinicIrvine, CA
- Ucsf Medical Group Business ServicesSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Byoungjun Han among 929 neurological surgery physician records in California
Nathan Byoungjun Han, MD is one of 929 neurological surgery physician records with a practice address in California. 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 2017, is newer than 88% of them.
- NPI issued2017 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2005 among the 612 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in California
There are 929 neurological surgery physician records in California.
All 929 in California → Every provider in San Francisco → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Manish Aghi, MD PHDSan Francisco, CA 941431689647778
- Christopher Ames, MDSan Francisco, CA 941431265485155
- Mitchel Berger, MDSan Francisco, CA 941431538117981
- Nicholas Butowski, MDSan Francisco, CA 941431184681009
- Susan Chang, MDSan Francisco, CA 941431346299518
- Nalin Gupta, MDSan Francisco, CA 941431811955438
- Evren Keles, M.D.San Francisco, CA 941431407872674
- Praveen Mummaneni, M.D.San Francisco, CA 941431407960099
Common questions
What is Nathan Byoungjun Han, MD's NPI number?
Nathan Byoungjun Han, MD's National Provider Identifier (NPI) is 1417484569, issued on May 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Byoungjun Han, MD located?
The NPPES record lists a practice address at 400 Parnassus Ave # A303, San Francisco, CA, 94143. Phone: (415) 353-3292. Providers update this record themselves, so call before visiting.
How can I verify Nathan Byoungjun Han, MD's license?
NPPES lists California license number A194591, 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.