Alexander King Chen, M.D.
Internal Medicine Physician · Woodland, CA
Alexander King Chen, M.D. is an internal medicine physician with a practice address in Woodland, California, and NPI 1164537858, issued on Aug 20, 2006. Check the license (California G85900, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander King Chen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G85900 CA
Self-reported in NPPES; status is on the state search - Practice location
- 632 W Gibson RD, Woodland, CA 95695
- Phone
- (530) 668-2600
- Enumerated
- Aug 20, 2006
- Record last updated
- Sep 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (530) 661-0880
- Medicare enrollment
- Enrolled (PECOS I20080717000728); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 632 W Gibson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Clariza Aguillon-Doms, NPNurse Practitioner1174836993
- Sammy Almashat, M.D.Occupational Medicine Physician1194987578
- Khuram Arif, MDPediatrics Physician1851492268
- Irma Bernal, NPFamily Nurse Practitioner1902553878
Verify Alexander King Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G85900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.0 times the Medicare Part D claims of the average internal medicine physician in 2024
22,296 Medicare Part D claims for 1,143 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 1,125 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,186 claims
- Levothyroxine Sodium793 claims
- Losartan Potassium771 claims
- Amlodipine Besylate713 claims
- Lisinopril682 claims
- Gabapentin586 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.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $137.46
1 payment: 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
- Dignity Health Medical FoundationWoodland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander King Chen among 17,696 internal medicine physician records in California
Alexander King Chen, 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
- Graduated1990 · median 2004 among the 11,065 with a school on file
- Record last updated2019 · 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 Woodland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Timothy Davis, D.O.Woodland, CA 956951477865053
- Amanpreet Kaur, M.D.Woodland, CA 956951811910672
- Syed Khasimuddin, M.D.Woodland, CA 956951720008212
- Monika Kraft, M.D.Woodland, CA 956951841206463
- Uma Kunda, M.D.Woodland, CA 956951225068943
- Chu Kwan Lau, MDWoodland, CA 956951164438933
- Stuart Linne, M.D.Woodland, CA 956951245258144
- Liana Turkot, MDWoodland, CA 956951245259241
Common questions
What is Alexander King Chen, M.D.'s NPI number?
Alexander King Chen, M.D.'s National Provider Identifier (NPI) is 1164537858, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alexander King Chen, M.D. located?
The NPPES record lists a practice address at 632 W Gibson RD, Woodland, CA, 95695. Phone: (530) 668-2600. Providers update this record themselves, so call before visiting.
How can I verify Alexander King Chen, M.D.'s license?
NPPES lists California license number G85900, 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 Alexander King Chen, M.D. prescribe under Medicare Part D?
In 2024, Alexander King Chen, M.D. had 22,296 Medicare Part D claims for 1,143 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Alexander King Chen, M.D.'s MIPS final score?
The 2023 MIPS final score is 96.5 of 100. 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.