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

Dr. Blake Knudson Isom, DO

Individual provider Emergency Medicine Physician · NPI 1336433788

Dr. Blake Knudson Isom, DO practises Emergency Medicine in Harrisburg, Pennsylvania. Qualified in 2011, 15 years ago. Practices with Pinnacle Health Emergency Department Services, LLC, a 107-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
15
Licensed in
PA
In the registry since
2011
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.

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Practice location Address checks out

111 S Frnt ST
Harrisburg, PA 17101-2010
Phone: (717) 988-0000
Fax: (717) 782-5716
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence OS016812 (PA)

Record details

NPI number1336433788
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 2, 2011
Last updated in NPPESJanuary 16, 2021
Certification dateJanuary 16, 2021

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
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 patients293
Services billed 310 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.

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 Harrisburg