Esther S. Ahn
- Medicare services, 2024
- 452
- Medicare patients, 2024
- 110
- Part D claims, 2024
- 1,811
- Hospital affiliations
- 2
- Industry payments
- $327
- Practice address
- 4676 Admiralty Way, Marina Del Rey, CA 90292
- Practice phone
- Call (310) 385-3200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cedars-Sinai Medical Care Foundation
Marina Del Rey, California
Find Esther Ahn's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Esther S. Ahn is an internist in Marina Del Rey, California
Esther Ahn practices at Cedars-Sinai Medical Care Foundation in Marina Del Rey, California.
Esther Ahn's NPI, 1023375847, was assigned on April 18, 2012. Esther Ahn holds California license 128139.
- NPI
- 1023375847NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234446006
- NPI enumeration date
- April 18, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 385-3200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Esther S. Ahn practices at Cedars-Sinai Medical Care Foundation in Marina Del Rey, California
Esther Ahn's primary practice is Cedars-Sinai Medical Care Foundation, at 4676 Admiralty Way, Marina Del Rey, CA 90292 in Los Angeles County. The practice phone is (310) 385-3200.
- Cedars-Sinai Medical Care Foundation4676 Admiralty Way, Marina Del Rey, CA 90292 · Los Angeles CountyPhone(310) 385-3200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Esther S. Ahn is affiliated with 4 sites of care and 1 medical group
Esther Ahn's primary practice is Cedars-Sinai Medical Care Foundation in Marina Del Rey, California. Esther Ahn is also affiliated with Cedars-Sinai Marina Hospital. The medical group on file is Cedars-Sinai Medical Group. Dmand AI also links Esther Ahn to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Esther S. Ahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Esther Ahn practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai Medical Care Foundation | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Esther S. Ahn is one of 16,751 internists in California
Internal medicine is Esther Ahn's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Esther Ahn is board certified in internal medicine by the American Board of Internal Medicine. Esther Ahn is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Esther Ahn
Counts of internists 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
Esther S. Ahn billed Medicare for 452 services in 2024
CMS data shows 452 Medicare services from Esther Ahn across 8 procedure codes in 2024, for 110 Medicare patients. Medicare paid $14,992 for them. Every service was in an office.
Esther Ahn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2162024: 2103%
- Surgery
- 2023: 1312024: 1282%
- Other services
- 2023: 932024: 7915%
- Tests and treatments
- 2023: 462024: 3524%
Esther Ahn compared with the California median for internists, 2024
- Esther Ahn
- California median
- Medicare services
- 452vs 36125% above
- Medicare patients
- 110vs 15127% below
- Part D claims
- 1,387vs 4213.3 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Esther Ahn'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Esther Ahn and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Esther S. Ahn treated 110 Medicare patients in 2024, average age 73
CMS counts 110 Medicare patients who saw Esther Ahn in 2024. The largest group is 65 to 74, with 54 patients. 69% of them have high cholesterol, and 68% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Esther Ahn's median patient age at 57, with 72% women.
Esther Ahn's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Esther Ahn's Medicare patients by sex, 2024
- Women7568%
- Men3532%
Chronic conditions among Esther Ahn's Medicare patients, 2024
- High cholesterol69%
- High blood pressure68%
- Arthritis38%
- Diabetes22%
- Anxiety19%
- Ischemic heart disease19%
- Osteoporosis19%
- Chronic kidney disease18%
Share of Medicare patients with each condition. A patient can have several.
Esther Ahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women72%
- Men26%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Esther S. Ahn wrote 1,811 Medicare Part D claims in 2024
In 2024, Esther Ahn wrote 1,811 Medicare Part D claims for 220 patients. 88% of them were for generic drugs. CMS names the drug for 1,387 of them, across 42 drugs with 11 or more claims each, at $35,987 in total drug cost. In 2023, CMS named 1,375 claims across 48 drugs.
Esther Ahn's Part D claims by kind of drug, 2024
- Generic1,594 claims88%
- Brand-name201 claims11%
- Other16 claims1%
Esther Ahn'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 Esther Ahn's Part D claims, 2024
- Opioids4%68 of 1,811 claims
- Antibiotics1%11 of 1,811 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: 1,3752024: 1,3871%
Drugs named by CMS: 42 in 2024, 48 in 2023.
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
Esther S. Ahn offers telehealth to Medicare patients
Esther Ahn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Esther Ahn as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Esther S. Ahn received $327 in industry payments from 2016 to 2017
CMS Open Payments shows 3 general payments to Esther Ahn from 3 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $128.
General payments to Esther Ahn by program year, 2016 to 2017
Companies that paid Esther Ahn the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Esther S. Ahn is board certified in internal medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Esther S. Ahn's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Esther S. Ahn
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Esther S. Ahn's NPI number?
Esther S. Ahn's NPI number is 1023375847. It was assigned on April 18, 2012, and it is active in the NPI Registry.
What does Esther S. Ahn specialize in?
Esther S. Ahn is an internist in Marina Del Rey, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Esther S. Ahn practice?
Esther Ahn practices at 4676 Admiralty Way, Marina Del Rey, CA 90292. Esther Ahn's primary practice is Cedars-Sinai Medical Care Foundation in Marina Del Rey, California. Dmand AI also links Esther Ahn to 1 hospital and 1 group practice or clinic.
What is Esther S. Ahn's office phone number?
The practice phone on file for Esther Ahn is (310) 385-3200.
What is Esther S. Ahn's medical license number?
Esther Ahn holds California license 128139.
Which hospitals is Esther S. Ahn affiliated with?
Esther Ahn is affiliated with Cedars-Sinai Marina Hospital. Dmand AI links Esther Ahn to 1 more hospital.
What medical group is Esther S. Ahn part of?
Esther Ahn is linked to Cedars-Sinai Medical Group.
Does Esther S. Ahn accept Medicare?
Yes. CMS data shows Esther Ahn billed Medicare for 452 services in 2024, and Esther Ahn accepts Medicare assignment.
Does Esther S. Ahn offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Esther Ahn as offering telehealth services.
How many Medicare patients does Esther S. Ahn see?
CMS counts 110 Medicare patients who saw Esther Ahn in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
Is Esther S. Ahn board certified?
Yes. Esther Ahn is board certified in internal medicine by the American Board of Internal Medicine.
What services does Esther S. Ahn bill to Medicare?
In 2024, Esther Ahn's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G0439).
What drugs does Esther S. Ahn prescribe most?
In 2024 Medicare Part D data, Esther Ahn's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Esther S. Ahn received payments from drug or device companies?
CMS Open Payments shows $327 in general payments to Esther Ahn from 3 companies from 2016 to 2017. The largest total came from Merck Sharp & Dohme Corporation.
How long has Esther S. Ahn been practicing?
Esther Ahn graduated from medical school in 2012, 14 years ago.
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