Shelley H. Han, M.D.
Internal Medicine Physician · Costa Mesa, CA
Shelley H. Han, M.D. is an internal medicine physician with a practice address in Costa Mesa, California, and NPI 1114345683, issued on Apr 2, 2014. Check the license (California A139242, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shelley H. Han
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A139242 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3090 Bristol St Ste 200, Costa Mesa, CA 92626
- Phone
- (888) 789-9585
- Enumerated
- Apr 2, 2014
- Record last updated
- Feb 5, 2026
- Fax
- (562) 803-4500
- Medicare enrollment
- Enrolled (PECOS I20170424001300); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 3090 Bristol St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marjorie Chan, NPNurse Practitioner1174811624
- Doreen Chibweth, FNPFamily Nurse Practitioner1528715653
- Orlando Collado, MDFamily Medicine Physician1205964947
- Kristyn Gonzaga, NPPrimary Care Nurse Practitioner1750170411
- Iman GuirgisFamily Medicine Physician1154774933
- Sowmya Krishnan, NPGerontology Nurse Practitioner1164110219
Verify Shelley H. Han in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A139242Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 86.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- GN Medical Associates, IncCosta Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shelley H. Han among 17,696 internal medicine physician records in California
Shelley H. 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 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 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).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Costa Mesa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Maryam Attar-Seyedi, M.DCosta Mesa, CA 926261518972330
- Philip Cheu, MDCosta Mesa, CA 926261568467215
- Ragavi Elangovan, D.OCosta Mesa, CA 926261336587658
- Yvonne Kwan, MDCosta Mesa, CA 926261659378966
- Dariush Lavi, M.D.Costa Mesa, CA 926261750449062
- Huong Le, MDCosta Mesa, CA 926261699727537
- Hoan Le, MDCosta Mesa, CA 926261982656740
- Edward Lee, MDCosta Mesa, CA 926261508863499
Common questions
What is Shelley H. Han, M.D.'s NPI number?
Shelley H. Han, M.D.'s National Provider Identifier (NPI) is 1114345683, issued on Apr 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Shelley H. Han, M.D. located?
The NPPES record lists a practice address at 3090 Bristol St Ste 200, Costa Mesa, CA, 92626. Phone: (888) 789-9585. Providers update this record themselves, so call before visiting.
How can I verify Shelley H. Han, M.D.'s license?
NPPES lists California license number A139242, 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.
What is Shelley H. Han, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.