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

Gretchen M Heringhaus, AA

Individual provider Anesthesiologist Assistant · NPI 1891029880

Gretchen M Heringhaus, AA is an Anesthesiology Assistant in Westerville, Ohio. Qualified in 2009, 17 years ago. Practices with Osu Observation Medicine, LLC, a 419-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
17
Licensed in
OH
In the registry since
2009
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Practice location Address checks out

500 S Cleveland Ave Anesthesia Dept/coa
Westerville, OH 43081-8971
Phone: (614) 898-6659
Fax: (614) 898-8631
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2121 Kenny Rd, Columbus, OH 43210-3100 — (614) 293-8487

Specialties & licences

Anesthesiologist Assistant (primary) Taxonomy 367H00000X · Licence 67.000192 (OH)

Record details

NPI number1891029880
Entity typeIndividual (Type 1)
GenderFemale
Credentials AA
Sole proprietorNo
NPI enumeratedSeptember 24, 2009
Last updated in NPPESJune 27, 2025
Certification dateJune 27, 2025

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY ASSISTANT
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Osu Observation Medicine, Llc — 419 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Westerville