Dr. Daniel S. Ahn, MD

  • Calhoun, GA
  • Ophthalmologist
NPI1184645558PAC ID1850586090
Medicare services, 2024
3,275
Medicare patients, 2024
931
Part D claims, 2024
2,006
MIPS score, 2024
84
Hospital affiliations
1
Practice address
1035 Red Bud Rd, Calhoun, GA 30701
Practice phone
Call (706) 602-7800
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

AdventHealth Medical Group

Calhoun, Georgia

See all 3 affiliations

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Dr. Daniel S. Ahn is an ophthalmologist in Calhoun, Georgia

Dr. Ahn practices at AdventHealth Medical Group in Calhoun, Georgia.

Dr. Ahn's NPI, 1184645558, was assigned on July 21, 2006. Dr. Ahn graduated from UC San Diego School of Medicine in 1991. Dr. Ahn's Georgia license number on file is 040852.

NPI and contact details
Medicare PAC ID
1850586090
NPI enumeration date
July 21, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(706) 602-7800
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
61
Medical school graduation
1991

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

Dr. Daniel S. Ahn practices at AdventHealth Medical Group in Calhoun, Georgia

Dr. Ahn's primary practice is AdventHealth Medical Group, at 1035 Red Bud Rd, Calhoun, GA 30701 in Gordon County. The practice phone is (706) 602-7800.

  • AdventHealth Medical Group
    1035 Red Bud Rd, Calhoun, GA 30701 · Gordon CountyPhone(706) 602-7800

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

Dr. Daniel S. Ahn is affiliated with 2 sites of care and 1 medical group

Dr. Ahn's primary practice is AdventHealth Medical Group in Calhoun, Georgia. Dr. Ahn is also affiliated with AdventHealth Gordon. The medical group on file is AdventHealth Medical Group.

See all 3 affiliations for Dr. Ahn

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 Dr. Daniel S. Ahn's practice

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

EHR by site
SiteEHR vendor and product
AdventHealth Medical GroupAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Daniel S. Ahn is one of 484 ophthalmologists in Georgia

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

Specialties and state licenses

  • Ophthalmology, GeorgiaPrimaryLicense 040852 · 1995 to 2025 · taxonomy 207W00000X
  • California license1992 to 2027

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. Ahn treats.

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 S. Ahn billed Medicare for 3,275 services in 2024

CMS data shows 3,275 Medicare services from Dr. Ahn across 14 procedure codes in 2024, for 931 Medicare patients. Medicare paid $213,235 for them.

Medicare services, 20243,275
Medicare patients931
Paid by Medicare$213,235
Procedure codes14

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

  • 2023
  • 2024
Tests and treatments
2023: 2,7552024: 2,9788%
Surgery
2023: 2092024: 23914%
Imaging
2023: 432024: 415%
Office and hospital visits
2023: 202024: 1715%

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

  • In an office3,03693%
  • In a facility2397%

Dr. Ahn compared with the Georgia median for ophthalmologists, 2024

  • Dr. Ahn
  • Georgia median
Medicare services
3,275vs 1,5862.1 times
Medicare patients
931vs 57263% above
Part D claims
1,947vs 8912.2 times

Medians across 477 ophthalmologists in Georgia 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.

See all procedures by Dr. Ahn

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

Dr. Daniel S. Ahn treated 931 Medicare patients in 2024, average age 75

CMS counts 931 Medicare patients who saw Dr. Ahn in 2024. The largest group is 65 to 74, with 390 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Ahn's median patient age at 71, with 57% women.

Medicare patients, 2024931
Average age75
Average risk score1.13
Also on Medicaid10%

Dr. Ahn's Medicare patients by age, 2024

Dr. Ahn's Medicare patients by sex, 2024

  • Women54458%
  • Men38742%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis47%
  4. Diabetes39%
  5. Ischemic heart disease33%
  6. Chronic kidney disease27%
  7. Anxiety25%
  8. Heart failure25%

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 71

Patient panel by sex, all payers

  • Women57%
  • Men42%

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

Dr. Daniel S. Ahn wrote 2,006 Medicare Part D claims in 2024

In 2024, Dr. Ahn wrote 2,006 Medicare Part D claims for 639 patients. 76% of them were for generic drugs. CMS names the drug for 1,947 of them, across 18 drugs with 11 or more claims each, at $189,478 in total drug cost. In 2023, CMS named 1,847 claims across 17 drugs.

Part D claims, 20242,006
Drugs named by CMS18
Total drug cost$189,478
Part D patients639

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

  • Generic1,518 claims76%
  • Brand-name488 claims24%

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, 2024

  • Antibiotics1%18 of 2,006 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: 1,8472024: 1,9475%

Drugs named by CMS: 18 in 2024, 17 in 2023.

See all prescribing by Dr. Ahn

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. Daniel S. Ahn scored 84 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Ahn for performance year 2024, reported as part of a group. Dr. Ahn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 288 procedures of cataract surgery by Dr. Ahn, more than 89% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Ahn's MIPS scores, performance year 2024

  • 84of 100Final score
  • 68.2of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 75of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Ahn ranks in Medicare procedure volume

Cataract surgery
89th percentile288 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. Daniel S. Ahn received $2,721 in industry payments from 2016 to 2025

CMS Open Payments shows 72 general payments to Dr. Ahn from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 62% of the total. Alcon Laboratories Inc paid the most, $1,563.

General payments to Dr. Ahn by program year, 2016 to 2025

General payments to Dr. Ahn by kind, 2016 to 2025

$2.7Kin total
  • Food and beverage$1,69362%
  • Travel and lodging$84031%
  • Speaker and faculty fees$1506%
  • Education$381%

Companies that paid Dr. Ahn the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Ahn

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

Dr. Daniel S. Ahn has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Ahn, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Ahn

  1. 2012
    • CMS Stage 1 EHR
  2. Undated
    • AAO Fellow

Source: Dmand AI Professional Profile Data

Dr. Daniel S. Ahn graduated from UC San Diego School of Medicine

Dr. Ahn graduated from UC San Diego School of Medicine in 1991. Dr. Ahn is a member of AAO.

  1. Medical schoolUC San Diego School of Medicine
  2. Board certified in ophthalmologyAmerican Board of Ophthalmology

Source: Dmand AI Professional Profile Data

Dr. Daniel S. Ahn accepts plans from 10 insurance carriers

Dr. Ahn is in network with 10 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Cigna
  • Humana
  • Alliant Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +2 more carriersWith a free account

Plan types Dr. Ahn accepts, by number of carriers

  1. PPO6
  2. Medicare5
  3. EPO3
  4. POS3
  5. HMO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Daniel S. Ahn'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 DataDmand AI Affiliation DataDmand AI Org Hierarchy 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)
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. Daniel 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 Dr. Daniel S. Ahn's NPI number?

Dr. Daniel S. Ahn's NPI number is 1184645558. It was assigned on July 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Daniel S. Ahn?

Dr. Daniel S. Ahn is an ophthalmologist in Calhoun, Georgia. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Daniel S. Ahn practice?

Dr. Ahn practices at 1035 Red Bud Rd, Calhoun, GA 30701. Dr. Ahn's primary practice is AdventHealth Medical Group in Calhoun, Georgia.

What is Dr. Daniel S. Ahn's office phone number?

The practice phone on file for Dr. Ahn is (706) 602-7800.

What is Dr. Daniel S. Ahn's medical license number?

Dr. Ahn's Georgia license number on file is 040852, one of the licenses on file in 2 states.

Which states has Dr. Daniel S. Ahn been licensed in?

Dmand AI has state licenses on file for Dr. Ahn in Georgia (1995 to 2025) and California (1992 to 2027).

Which hospitals is Dr. Daniel S. Ahn affiliated with?

Dr. Ahn is affiliated with AdventHealth Gordon.

What medical group is Dr. Daniel S. Ahn part of?

Dr. Ahn is linked to AdventHealth Medical Group.

Does Dr. Daniel S. Ahn accept Medicare?

Yes. CMS data shows Dr. Ahn billed Medicare for 3,275 services in 2024, and Dr. Ahn accepts Medicare assignment.

What is Dr. Daniel S. Ahn's MIPS score?

Dr. Ahn's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Daniel S. Ahn see?

CMS counts 931 Medicare patients who saw Dr. Ahn in 2024, with an average age of 75.

Is Dr. Daniel S. Ahn board certified?

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

What services does Dr. Daniel S. Ahn bill to Medicare?

In 2024, Dr. Ahn's most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and eye exam or test (92250).

Where did Dr. Daniel S. Ahn go to medical school?

Dr. Ahn graduated from UC San Diego School of Medicine in 1991.

What drugs does Dr. Daniel S. Ahn prescribe most?

In 2024 Medicare Part D data, Dr. Ahn's most prescribed drugs by claims were Ketorolac Tromethamine, Latanoprost and Lumigan.

Has Dr. Daniel S. Ahn received payments from drug or device companies?

CMS Open Payments shows $2,721 in general payments to Dr. Ahn from 14 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.

How long has Dr. Daniel S. Ahn been practicing?

Dr. Ahn graduated from medical school in 1991, 35 years ago.

What insurance does Dr. Daniel S. Ahn accept?

Dr. Ahn is in network with 10 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

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