Gretchen Lemmink, M.D
NPI 1780900951 · Critical Care Medicine (Anesthesiology) Physician · Cincinnati, OH
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Lemmink, M.D is a Critical Care Medicine (Anesthesiology) Physician provider in Cincinnati, OH (NPI 1780900951).
Provider details
- NPI number
- 1780900951
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- Yes
- License
- 35.123600 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
18 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 18 | $203 |
Typical Medicare-allowed amounts for these services range $203–$203 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-13
- Last updated
- 2017-06-07
Frequently asked questions
- What is Gretchen Lemmink's NPI number?
- Gretchen Lemmink's National Provider Identifier (NPI) is 1780900951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Lemmink's specialty?
- Gretchen Lemmink is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Gretchen Lemmink located?
- Gretchen Lemmink's practice location on file with NPPES is 234 Goodman St, Cincinnati, OH 45219-2364.
- What is Gretchen Lemmink's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Lemmink is (513) 558-4194.
- Does Gretchen Lemmink accept Medicare?
- Gretchen Lemmink is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Lemmink's NPI active?
- Yes — Gretchen Lemmink's NPI (1780900951) is active in the NPPES registry as of the last update on 2017-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.