Gretchen Heringhaus, AA
NPI 1891029880 · Anesthesiologist Assistant · Westerville, OH
Enrolled with Medicare as Practitioner - Anesthesiology Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Heringhaus, AA is a Anesthesiologist Assistant provider in Westerville, OH (NPI 1891029880).
Provider details
- NPI number
- 1891029880
- Entity type
- Individual
- Primary specialty
- Anesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AA
- Sex
- Female
- Sole proprietor
- No
- License
- 67.000192 (OH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
80 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 33 | $143 |
| Anesthesia for Total Hip Replacement01214 | 21 | $162 |
| Anesthesia for Extensive Removal of Prostate00865 | 14 | $184 |
| Anesthesia for Extensive Surgery on Spine00670 | 12 | $268 |
Typical Medicare-allowed amounts for these services range $143–$268 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$343 across 21 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2121 Kenny RdColumbus, OH 43210-3100Phone: (614) 293-8487Fax: (614) 293-8153
Registry dates
- Enumerated
- 2009-09-24
- Last updated
- 2025-06-27
- Certified
- 2025-06-27
Frequently asked questions
- What is Gretchen Heringhaus's NPI number?
- Gretchen Heringhaus's National Provider Identifier (NPI) is 1891029880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Heringhaus's specialty?
- Gretchen Heringhaus is listed in the NPPES registry with a primary specialty of Anesthesiologist Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gretchen Heringhaus located?
- Gretchen Heringhaus's practice location on file with NPPES is 500 S Cleveland Ave, Westerville, OH 43081-8971.
- What is Gretchen Heringhaus's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Heringhaus is (614) 898-6659.
- Does Gretchen Heringhaus accept Medicare?
- Gretchen Heringhaus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Heringhaus's NPI active?
- Yes — Gretchen Heringhaus's NPI (1891029880) is active in the NPPES registry as of the last update on 2025-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.