Simon Baek, M.D.
Internal Medicine Physician · La Habra, CA
Simon Baek, M.D. is an internal medicine physician with a practice address in La Habra, California, and NPI 1821316209, issued on May 11, 2010. Check the license (California G077818, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Simon Baek
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G077818 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2151 W. Toledo Place, La Habra, CA 90631
- Phone
- (562) 690-5502
- Enumerated
- May 11, 2010
- Record last updated
- Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120423000771); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Simon Baek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G077818Check 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 internal medicine physician in 2024
7,258 Medicare Part D claims for 873 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. 365 claims were for opioids.
Most prescribed
- Atorvastatin Calcium706 claims
- Amlodipine Besylate314 claims
- Losartan Potassium296 claims
- Lisinopril257 claims
- Levothyroxine Sodium218 claims
- Hydrocodone-Acetaminophen185 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
- Southern California Permanente Medical GroupRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
9 internal medicine physician records list a practice address in La Habra
They are 9 of the 543 NPPES records with a practice address in La Habra, and 17,696 internal medicine physician records in California.
All 9 in La Habra → All 17,696 in California → Every provider in La Habra →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Simon Baek, M.D.'s NPI number?
Simon Baek, M.D.'s National Provider Identifier (NPI) is 1821316209, issued on May 11, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Simon Baek, M.D. located?
The NPPES record lists a practice address at 2151 W. Toledo Place, La Habra, CA, 90631. Phone: (562) 690-5502. Providers update this record themselves, so call before visiting.
How can I verify Simon Baek, M.D.'s license?
NPPES lists California license number G077818, 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 Simon Baek, M.D. prescribe under Medicare Part D?
In 2024, Simon Baek, M.D. had 7,258 Medicare Part D claims for 873 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.