Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Aaron Samuel Ratner, DO, MS

Individual provider Emergency Medicine Physician · NPI 1063708766

Dr. Aaron Samuel Ratner, DO, MS practises Emergency Medicine in Farmington, Maine. Graduated from Philadelphia College of Osteopathic Medicine in 2011, 15 years ago. Practices with Pinnacle Health Emergency Department Services, LLC, a 107-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Delaware, Maine and Pennsylvania.

Years since qualifying
15
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
DE, ME, PA
In the registry since
2011
Specialties on file
5
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.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

111 Franklin Health Cmns
Farmington, ME 04938-6144
Phone: (207) 778-6031
Fax: (207) 779-2632
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 4755 Ogletown Stanton Rd, Newark, DE 19718-2200 — (302) 733-1806
  • 1200 S Cedar Crest Blvd, Allentown, PA 18103-6202 — (484) 862-3232
  • 100 Hospital Ave, Du Bois, PA 15801-1440 — (814) 371-2200

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence OS016425 (PA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence OT014189 (PA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence DO3925 (ME)
Emergency Medicine Physician Taxonomy 207P00000X · Licence C2-0024945 (DE)
Emergency Medicine Physician Taxonomy 207P00000X · Licence LT4005 (ME)

Record details

NPI number1063708766
Entity typeIndividual (Type 1)
GenderMale
Credentials DO , MS
Sole proprietorNo
NPI enumeratedJune 22, 2011
Last updated in NPPESSeptember 17, 2026
Certification dateSeptember 17, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2011 (15 years in practice)
Group practice Pinnacle Health Emergency Department Services, Llc — 107 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients139
Services billed 142 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Pinnacle Health Emergency Department Services, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 107 clinicians in the practice; 12 are shown here.

Other providers in Farmington