Ilan Hartstein, M.D.
Ophthalmology Physician · La Palma, CA
Ilan Hartstein, M.D. is an ophthalmology physician with a practice address in La Palma, California, and NPI 1184646283, issued on Jul 25, 2006. Check the license (California G59917, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ilan Hartstein
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G59917 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7851 Walker St Ste 207, La Palma, CA 90623
- Phone
- (714) 522-4862
- Enumerated
- Jul 25, 2006
- Record last updated
- Aug 3, 2022
- Fax
- (714) 522-4293
- Medicare enrollment
- Enrolled (PECOS I20040817001302); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify Ilan Hartstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G59917Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average ophthalmology physician in 2024
853 Medicare Part D claims for 196 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Latanoprost388 claims
- Prednisolone Acetate73 claims
- Dorzolamide-Timolol63 claims
- Brimonidine Tartrate40 claims
- Acetazolamide30 claims
- Moxifloxacin29 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Ilan Hartstein among 2,899 ophthalmology physician records in California
Ilan Hartstein, M.D. is one of 2,899 ophthalmology 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 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1985 · median 2001 among the 1,907 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in La Palma → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Jonathan Kim, MDLa Palma, CA 906231689682908
- Feilin Zhu, M.D.La Palma, CA 906231497045041
- Michael Choi, M.D.Buena Park, CA 906211871912279
- Yun Kim, MDBuena Park, CA 906211255431300
- Inja Kim, M.D.Buena Park, CA 906211588762769
- Joseph Lee, MDBuena Park, CA 906211558458364
- Alejandra Uchio, M.D.Buena Park, CA 906211144217191
- Deep Dudeja, M.D.La Habra, CA 906311821050642
Common questions
What is Ilan Hartstein, M.D.'s NPI number?
Ilan Hartstein, M.D.'s National Provider Identifier (NPI) is 1184646283, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ilan Hartstein, M.D. located?
The NPPES record lists a practice address at 7851 Walker St Ste 207, La Palma, CA, 90623. Phone: (714) 522-4862. Providers update this record themselves, so call before visiting.
How can I verify Ilan Hartstein, M.D.'s license?
NPPES lists California license number G59917, 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 Ilan Hartstein, M.D. prescribe under Medicare Part D?
In 2024, Ilan Hartstein, M.D. had 853 Medicare Part D claims for 196 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Ilan Hartstein, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.