Dr. Ilan Hartstein, MD

  • La Palma, CA
  • Ophthalmologist
NPI1184646283PAC ID3577536556
Medicare services, 2024
2,090
Medicare patients, 2024
469
Part D claims, 2024
853
Publications
3
MIPS score, 2024
75
Practice address
7851 Walker St, La Palma, CA 90623
Practice phone
Call (714) 522-4862
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Ilan Hartstein, MD. Inc

La Palma, California

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Dr. Ilan Hartstein is an ophthalmologist in La Palma, California

Dr. Hartstein practices at Ilan Hartstein, MD. Inc in La Palma, California.

Dr. Hartstein's NPI, 1184646283, was assigned on July 25, 2006. Dr. Hartstein graduated from Tufts University School Of Medicine in 1985. Dr. Hartstein holds California license G59917.

NPI and contact details
Medicare PAC ID
3577536556
NPI enumeration date
July 25, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(714) 522-4862
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
67
Medical school graduation
1985

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Ilan Hartstein practices at Ilan Hartstein, MD. Inc in La Palma, California

Dr. Hartstein's primary practice is Ilan Hartstein, MD. Inc, at 7851 Walker St, La Palma, CA 90623 in Orange County. The practice phone is (714) 522-4862.

  • Ilan Hartstein, MD. Inc
    7851 Walker St, La Palma, CA 90623 · Orange CountyPhone(714) 522-4862

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Ilan Hartstein is affiliated with 1 site of care

Dr. Hartstein's primary practice is Ilan Hartstein, MD. Inc in La Palma, California.

Ilan Hartstein, MD. IncLa Palma, CaliforniaPrimary

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. Ilan Hartstein's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hartstein practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ilan Hartstein, MD. IncAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ilan Hartstein is one of 2,621 ophthalmologists in California

Ophthalmology is Dr. Hartstein's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Hartstein is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Hartstein's licenses on file in 2 states: California and New York.

Specialties and state licenses

  • Ophthalmology, CaliforniaPrimaryLicense G59917 · 1987 to 2026 · taxonomy 207W00000X
  • New York license1991 to 1992

Clinical focus

Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation and eyelid inflammation among the conditions Dr. Hartstein treats.

Ophthalmologists near Dr. Hartstein

Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Ilan Hartstein billed Medicare for 2,090 services in 2024

CMS data shows 2,090 Medicare services from Dr. Hartstein across 17 procedure codes in 2024, for 469 Medicare patients. Medicare paid $147,540 for them.

Medicare services, 20242,090
Medicare patients469
Paid by Medicare$147,540
Procedure codes17

Dr. Hartstein's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 1,9562024: 1,8983%
Surgery
2023: 1212024: 1146%
Office and hospital visits
2023: 682024: 663%
Imaging
2023: 02024: 12

Where Dr. Hartstein's Medicare services took place, 2024

  • In an office2,06999%
  • In a facility211%

Dr. Hartstein compared with the California median for ophthalmologists, 2024

  • Dr. Hartstein
  • California median
Medicare services
2,090vs 1,07994% above
Medicare patients
469vs 42111% above
Part D claims
765vs 61824% above

Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.

Dr. Hartstein's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Hartstein

Need commercial claims for Dr. Hartstein?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hartstein and other ophthalmologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Ilan Hartstein treated 469 Medicare patients in 2024, average age 77

CMS counts 469 Medicare patients who saw Dr. Hartstein in 2024. The largest group is 75 to 84, with 199 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hartstein's median patient age at 70, with 60% women.

Medicare patients, 2024469
Average age77
Average risk score1.11
Also on Medicaid16%

Dr. Hartstein's Medicare patients by age, 2024

Dr. Hartstein's Medicare patients by sex, 2024

  • Women29162%
  • Men17838%

Chronic conditions among Dr. Hartstein's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis45%
  4. Diabetes43%
  5. Chronic kidney disease30%
  6. Ischemic heart disease24%
  7. Osteoporosis23%
  8. Heart failure18%

Share of Medicare patients with each condition. A patient can have several.

Dr. Hartstein's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women60%
  • Men39%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Ilan Hartstein wrote 853 Medicare Part D claims in 2024

In 2024, Dr. Hartstein wrote 853 Medicare Part D claims for 196 patients. 47% of them were for generic drugs. CMS names the drug for 765 of them, across 14 drugs with 11 or more claims each, at $65,316 in total drug cost. In 2023, CMS named 720 claims across 16 drugs.

Part D claims, 2024853
Drugs named by CMS14
Total drug cost$65,316
Part D patients196

Dr. Hartstein's Part D claims by kind of drug, 2024

  • Generic405 claims47%
  • Brand-name448 claims53%

Dr. Hartstein's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Hartstein's Part D claims, 2024

  • Antibiotics2%14 of 853 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 7202024: 7656%

Drugs named by CMS: 14 in 2024, 16 in 2023.

See all prescribing by Dr. Hartstein

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Ilan Hartstein scored 75 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Hartstein for performance year 2024, reported individually. Dr. Hartstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 82 procedures of cataract surgery by Dr. Hartstein, more than 71% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
MIPS final score, 2024
75 of 100

Where Dr. Hartstein ranks in Medicare procedure volume

Cataract surgery
71st percentile82 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Ilan Hartstein has 3 publications on record

Dmand AI links 3 papers to Dr. Hartstein. Dr. Hartstein has published most often in Br J Ophthalmol.

Papers3

Recent publications by Dr. Hartstein

See all 3 publications and co-authors

See who Dr. Hartstein researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hartstein works with, so you can find a warm path to the right ophthalmologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Ilan Hartstein received $1,167 in industry payments from 2016 to 2023

CMS Open Payments shows 28 general payments to Dr. Hartstein from 15 drug and device companies from 2016 to 2023. Travel and lodging make up the largest share, 47% of the total. Alcon Laboratories Inc paid the most, $669.

General payments to Dr. Hartstein by program year, 2016 to 2023

General payments to Dr. Hartstein by kind, 2016 to 2023

$1.2Kin total
  • Travel and lodging$55247%
  • Food and beverage$52045%
  • Education$383%
  • Gifts$373%
  • Entertainment$212%

Companies that paid Dr. Hartstein the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Hartstein

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Ilan Hartstein has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Hartstein, most recently AAO Fellow in 2013.

Awards and honors for Dr. Hartstein

  1. 2013
    • AAO Fellow
  2. Undated
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Ilan Hartstein graduated from Tufts University School Of Medicine

Dr. Hartstein graduated from Tufts University School Of Medicine in 1985. Dr. Hartstein is a member of AAO.

  1. Medical schoolTufts University School Of Medicine
  2. Board certified in ophthalmologyAmerican Board of Ophthalmology

Source: Dmand AI Professional Profile Data

Dr. Ilan Hartstein accepts plans from 22 insurance carriers

Dr. Hartstein is in network with 22 carriers, including Aetna, Humana and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

  • Aetna
  • Humana
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • Elevance
  • HCSC
  • Alliant Health Plans
  • +14 more carriersWith a free account

Plan types Dr. Hartstein accepts, by number of carriers

  1. PPO13
  2. HMO12
  3. Medicare8
  4. POS7
  5. EPO5
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Ilan Hartstein's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ilan Hartstein

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Ilan Hartstein's NPI number?

Dr. Ilan Hartstein's NPI number is 1184646283. It was assigned on July 25, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Ilan Hartstein?

Dr. Ilan Hartstein is an ophthalmologist in La Palma, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Ilan Hartstein practice?

Dr. Hartstein practices at 7851 Walker St, La Palma, CA 90623. Dr. Hartstein's primary practice is Ilan Hartstein, MD. Inc in La Palma, California.

What is Dr. Ilan Hartstein's office phone number?

The practice phone on file for Dr. Hartstein is (714) 522-4862.

What is Dr. Ilan Hartstein's medical license number?

Dr. Hartstein holds California license G59917, one of the licenses on file in 2 states.

Which states has Dr. Ilan Hartstein been licensed in?

Dmand AI has state licenses on file for Dr. Hartstein in California (1987 to 2026) and New York (1991 to 1992).

Does Dr. Ilan Hartstein accept Medicare?

Yes. CMS data shows Dr. Hartstein billed Medicare for 2,090 services in 2024, and Dr. Hartstein accepts Medicare assignment.

What is Dr. Ilan Hartstein's MIPS score?

Dr. Hartstein's MIPS final score for performance year 2024 is 75 out of 100, reported individually.

How many Medicare patients does Dr. Ilan Hartstein see?

CMS counts 469 Medicare patients who saw Dr. Hartstein in 2024, with an average age of 77.

Is Dr. Ilan Hartstein board certified?

Yes. Dr. Hartstein is board certified in ophthalmology by the American Board of Ophthalmology.

Show 7 more questionsShow fewer questions

What services does Dr. Ilan Hartstein bill to Medicare?

In 2024, Dr. Hartstein's most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and eye exam or test (92134).

Where did Dr. Ilan Hartstein go to medical school?

Dr. Hartstein graduated from Tufts University School Of Medicine in 1985.

What drugs does Dr. Ilan Hartstein prescribe most?

In 2024 Medicare Part D data, Dr. Hartstein's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Dorzolamide-Timolol.

Has Dr. Ilan Hartstein received payments from drug or device companies?

CMS Open Payments shows $1,167 in general payments to Dr. Hartstein from 15 companies from 2016 to 2023. The largest total came from Alcon Laboratories Inc.

How long has Dr. Ilan Hartstein been practicing?

Dr. Hartstein graduated from medical school in 1985, 41 years ago.

Does Dr. Ilan Hartstein do research?

Dmand AI links 3 publications to Dr. Hartstein.

What insurance does Dr. Ilan Hartstein accept?

Dr. Hartstein is in network with 22 carriers, including Aetna, Humana and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

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