Dr. Daniel Ahn, DO
- Medicare services, 2024
- 4,289
- Medicare patients, 2026
- 934
- Part D claims, 2026
- 3,993
- Hospital affiliations
- 1
- Industry payments
- $9,258
- Practice address
- 30 Hatfield Ln, Goshen, NY 10924
- Practice phone
- Call (845) 651-1400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Horizon Family Medical Group
Goshen, New York
Find Dr. 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.
Dr. Daniel Ahn is an ophthalmologist in Goshen, New York
Dr. Ahn practices at Horizon Family Medical Group in Goshen, New York.
Dr. Ahn's NPI, 1932416781, was assigned on August 31, 2010. Dr. Ahn graduated from NYIT College Of Osteopathic Medicine in 2008. Dr. Ahn holds California license 20A12253.
- NPI
- 1932416781NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406010990
- NPI enumeration date
- August 31, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (845) 651-1400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel Ahn practices at Horizon Family Medical Group in Goshen, New York
Dr. Ahn's primary practice is Horizon Family Medical Group, at 30 Hatfield Ln, Goshen, NY 10924 in Orange County. The practice phone is (845) 651-1400.
- Horizon Family Medical Group30 Hatfield Ln, Goshen, NY 10924 · Orange CountyPhone(845) 651-1400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Daniel Ahn is affiliated with 3 sites of care and 1 medical group
Dr. Ahn's primary practice is Horizon Family Medical Group in Goshen, New York. Dr. Ahn is also affiliated with Montefiore St. Luke's Cornwall. The medical group on file is Horizon Family Medical Group. Dmand AI also links Dr. Ahn to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Daniel Ahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ahn practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Horizon Family Medical Group | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Ahn is one of 1,467 ophthalmologists in New York
Ophthalmology is Dr. Ahn's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Ahn's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Pennsylvania license
Ophthalmologists near Dr. Ahn
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. Daniel Ahn billed Medicare for 4,289 services in 2024
CMS data shows 4,289 Medicare services from Dr. Ahn across 21 procedure codes in 2024, for 934 Medicare patients. Medicare paid $352,356 for them.
Dr. Ahn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3,6492024: 3,6171%
- Surgery
- 2023: 2632024: 44469%
- Office and hospital visits
- 2023: 02024: 171
- Other services
- 2023: 02024: 22
- Lab and pathology
- 2023: 112024: 2082%
- Imaging
- 2023: 02024: 15
Where Dr. Ahn's Medicare services took place, 2024
- In an office4,03094%
- In a facility2596%
Dr. Ahn compared with the New York median for ophthalmologists, 2024
- Dr. Ahn
- New York median
- Medicare services
- 4,289vs 1,2583.4 times
- Medicare patients
- 934vs 4362.1 times
- Part D claims
- 3,888vs 6476.0 times
Medians across 1,557 ophthalmologists in New York with Dmand AI profiles that report each measure.
Dr. 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 Dr. Ahn and other ophthalmologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Ahn treated 934 Medicare patients in 2026, average age 74
CMS counts 934 Medicare patients who saw Dr. Ahn in 2026. The largest group is 65 to 74, with 423 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ahn's median patient age at 67, with 57% women.
Dr. Ahn's Medicare patients by age, 2026
Dr. Ahn's Medicare patients by sex, 2026
- Women56861%
- Men36639%
Chronic conditions among Dr. Ahn's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes40%
- Ischemic heart disease35%
- Anxiety21%
- Chronic kidney disease21%
- COPD19%
Share of Medicare patients with each condition. A patient can have several.
Dr. 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 67
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Daniel Ahn wrote 3,993 Medicare Part D claims in 2026
In 2026, Dr. Ahn wrote 3,993 Medicare Part D claims for 869 patients. 51% of them were for generic drugs. CMS names the drug for 3,888 of them, across 22 drugs with 11 or more claims each, at $573,830 in total drug cost. In 2023, CMS named 3,001 claims across 22 drugs.
Dr. Ahn's Part D claims by kind of drug, 2026
- Generic2,036 claims51%
- Brand-name1,957 claims49%
Dr. 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 Dr. Ahn's Part D claims, 2026
- Antibiotics1%42 of 3,993 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: 3,0012024: 3,88830%
Drugs named by CMS: 22 in 2024, 22 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), 2026 data
Dr. Daniel Ahn ranks in the 89th percentile for cataract surgery in Medicare
Dr. Ahn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 293 procedures of cataract surgery by Dr. Ahn, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Ahn ranks in Medicare procedure volume
- Cataract surgery
- 89th percentile293 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Daniel Ahn received $9,258 in industry payments from 2016 to 2025
CMS Open Payments shows 243 general payments to Dr. Ahn from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Alcon Laboratories Inc paid the most, $2,853.
General payments to Dr. Ahn by program year, 2016 to 2025
General payments to Dr. Ahn by kind, 2016 to 2025
- Food and beverage$8,58993%
- Travel and lodging$5015%
- Speaker and faculty fees$1502%
- Education$180%
Companies that paid Dr. Ahn the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel Ahn graduated from NYIT College Of Osteopathic Medicine
Dr. Ahn graduated from NYIT College Of Osteopathic Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel 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 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)Doctors and Clinicians Utilization Data (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 Dr. Daniel 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 Dr. Daniel Ahn's NPI number?
Dr. Daniel Ahn's NPI number is 1932416781. It was assigned on August 31, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Ahn?
Dr. Daniel Ahn is an ophthalmologist in Goshen, New York. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Daniel Ahn practice?
Dr. Ahn practices at 30 Hatfield Ln, Goshen, NY 10924. Dr. Ahn's primary practice is Horizon Family Medical Group in Goshen, New York. Dmand AI also links Dr. Ahn to 1 group practice or clinic, and a free account names each one.
What is Dr. Daniel Ahn's office phone number?
The practice phone on file for Dr. Ahn is (845) 651-1400. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Daniel Ahn's email address?
Dmand AI checks professional and personal email addresses for Dr. Ahn through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Daniel Ahn's medical license number?
Dr. Ahn holds California license 20A12253, one of the licenses on file in 2 states.
Which states has Dr. Daniel Ahn been licensed in?
Dmand AI has state licenses on file for Dr. Ahn in California and Pennsylvania.
Which hospitals is Dr. Daniel Ahn affiliated with?
Dr. Ahn is affiliated with Montefiore St. Luke's Cornwall.
What medical group is Dr. Daniel Ahn part of?
Dr. Ahn is linked to Horizon Family Medical Group.
Who does Dr. Daniel Ahn practice with?
Dmand AI links 120 HCPs to Dr. Ahn's primary medical group, 4 of them ophthalmologists. A free account lists them, with verified contacts.
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Does Dr. Daniel Ahn accept Medicare?
Yes. CMS data shows Dr. Ahn billed Medicare for 4,289 services in 2024, and Dr. Ahn accepts Medicare assignment.
How many Medicare patients does Dr. Daniel Ahn see?
CMS counts 934 Medicare patients who saw Dr. Ahn in 2026, with an average age of 74.
What services does Dr. Daniel Ahn bill to Medicare?
In 2024, Dr. Ahn's most billed Medicare services were eye exam or test (92014), eye exam or test (92250) and eye exam or test (92012).
Where did Dr. Daniel Ahn go to medical school?
Dr. Ahn graduated from NYIT College Of Osteopathic Medicine in 2008.
What drugs does Dr. Daniel Ahn prescribe most?
In 2024 Medicare Part D data, Dr. Ahn's most prescribed drugs by claims were Prednisolone Acetate, Latanoprost and Ketorolac Tromethamine.
Has Dr. Daniel Ahn received payments from drug or device companies?
CMS Open Payments shows $9,258 in general payments to Dr. Ahn from 30 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Daniel Ahn been practicing?
Dr. Ahn graduated from medical school in 2008, 18 years ago.
What EHR does Dr. Daniel Ahn's practice use?
Dmand AI tracks the EHR system at Horizon Family Medical Group and at 2 more affiliated sites. The vendor and product are available with a free Dmand AI account.
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