Richard Han, M.D.
Internal Medicine Physician · Buena Park, CA
Richard Han, M.D. is an internal medicine physician with a practice address in Buena Park, California, and NPI 1821061466, issued on Feb 13, 2006. Check the license (California G79142, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard Han
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G79142 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5832 Beach Blvd Unit 214, Buena Park, CA 90621
- Phone
- (714) 523-7575
- Enumerated
- Feb 13, 2006
- Record last updated
- Feb 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (714) 523-7585
- Medicaid ID
- 00G791420 CA
- Medicare enrollment
- Enrolled (PECOS I20040817000711); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5832 Beach Blvd Unit 214
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Chang, M.D.Internal Medicine Physician1487627261
- Hoyune Cho, M.D.General Practice Physician1033504311
- Joel GalvanBehavior Analyst1114499050
- Hoon Hong, M.D.Internal Medicine Physician1790758647
- Soohyun KimPrimary Care Nurse Practitioner1275495921
Verify Richard Han in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G79142Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,179 Medicare Part D claims for 452 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 16 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium782 claims
- Atorvastatin Calcium676 claims
- Amlodipine Besylate628 claims
- Olmesartan Medoxomil452 claims
- Metformin Hcl433 claims
- Levothyroxine Sodium312 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.
Industry payments in 2024: $5,155.92
129 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Friends Medical Group IncBuena Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard Han among 17,696 internal medicine physician records in California
Richard Han, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1992 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 internal medicine physician records list a practice address in Buena Park
They are 13 of the 728 NPPES records with a practice address in Buena Park, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Buena Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paul Chang, M.D.Buena Park, CA 906211487627261
- Edgardo Gonzalez, M.DBuena Park, CA 906211366514655
- Hoon Hong, M.D.Buena Park, CA 906211790758647
- Soo KangBuena Park, CA 906211164577706
- Tai-Won Kim, MDBuena Park, CA 906211487733754
- Sung Hyun Kim, M.DBuena Park, CA 906211447665369
- Felicia Tran, MDBuena Park, CA 906211225100753
- Victor Caluya, MDBuena Park, CA 906201467457101
Common questions
What is Richard Han, M.D.'s NPI number?
Richard Han, M.D.'s National Provider Identifier (NPI) is 1821061466, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard Han, M.D. located?
The NPPES record lists a practice address at 5832 Beach Blvd Unit 214, Buena Park, CA, 90621. Phone: (714) 523-7575. Providers update this record themselves, so call before visiting.
How can I verify Richard Han, M.D.'s license?
NPPES lists California license number G79142, 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 Richard Han, M.D. prescribe under Medicare Part D?
In 2024, Richard Han, M.D. had 11,179 Medicare Part D claims for 452 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.