Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Daniel Ahn, DO

Individual provider Ophthalmology Physician · NPI 1932416781

Dr. Daniel Ahn, DO is an Ophthalmology in Sonoma, California. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 2008, 18 years ago. Practices with Horizon Medical Group PC, a 76-clinician group and accepts Medicare assignment. Licensed in California and Pennsylvania.

Years since qualifying
18
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
CA, PA
In the registry since
2010
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

181 Andrieux St Ste 100
Sonoma, CA 95476-6932
Phone: (707) 588-7939
Fax: (707) 588-7941
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 20A12253 (CA)
Ophthalmology Physician Taxonomy 207W00000X · Licence OT012630 (PA)

Record details

NPI number1932416781
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 31, 2010
Last updated in NPPESJuly 31, 2012
Mailing address181 Andrieux St, Suite 100, Sonoma, CA 95476-6932

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 2008 (18 years in practice)
Group practice Horizon Medical Group Pc — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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