William Byung Ho Park, M.D.
Anesthesiology Physician · Garden Grove, CA
William Byung Ho Park, M.D. is an anesthesiology physician with a practice address in Garden Grove, California, and NPI 1821002288, issued on Jul 28, 2006. Check the license (California A52866C, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Byung Ho Park
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A52866C CA
Self-reported in NPPES; status is on the state search - Practice location
- 9828 Garden Grove Blvd Ste 201, Garden Grove, CA 92844
- Phone
- (714) 530-9633
- Enumerated
- Jul 28, 2006
- Record last updated
- Aug 13, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (714) 530-4410
- Medicaid ID
- 00A528661 CA
- Medicare enrollment
- Enrolled (PECOS I20040608000626); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 9828 Garden Grove Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jong Lee, M.D.Family Medicine Physician1023259819
- Jung Eun Yim, N.PAdult Health Nurse Practitioner1043643737
Verify William Byung Ho Park in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52866CCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average anesthesiology physician in 2024
934 Medicare Part D claims for 73 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin46 claims
- Vascepa46 claims
- Rosuvastatin Calcium43 claims
- Levocetirizine Dihydrochloride33 claims
- Amlodipine Besylate31 claims
- Lactated Ringers30 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.
Bills Medicare through one group practice
- Arash Esmailzadegan MD IncHuntington Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Byung Ho Park among 7,571 anesthesiology physician records in California
William Byung Ho Park, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1979 · median 2006 among the 4,868 with a school on file
- Record last updated2008 · 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 Garden Grove → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Phong Dang, MDGarden Grove, CA 928431932272614
- Gihan George, M.D.Garden Grove, CA 928431710055850
- Thomas Ho, M.D.Garden Grove, CA 928431255569836
- Gary Kao, MDGarden Grove, CA 928431619166931
- James Lee, M.D.Garden Grove, CA 928431033173588
- Gene Oh, MDGarden Grove, CA 928431235328683
- Tam-Nguyen Pham, M.D.Garden Grove, CA 928431306066410
- Kyung Ro, MDGarden Grove, CA 928431023126869
Common questions
What is William Byung Ho Park, M.D.'s NPI number?
William Byung Ho Park, M.D.'s National Provider Identifier (NPI) is 1821002288, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Byung Ho Park, M.D. located?
The NPPES record lists a practice address at 9828 Garden Grove Blvd Ste 201, Garden Grove, CA, 92844. Phone: (714) 530-9633. Providers update this record themselves, so call before visiting.
How can I verify William Byung Ho Park, M.D.'s license?
NPPES lists California license number A52866C, 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 William Byung Ho Park, M.D. prescribe under Medicare Part D?
In 2024, William Byung Ho Park, M.D. had 934 Medicare Part D claims for 73 beneficiaries; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.
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.