Tonia Greenwood, M.D.
NPI 1386870244 · Anesthesiology Physician · Two Rivers, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tonia Greenwood, M.D. is a Anesthesiology Physician provider in Two Rivers, WI (NPI 1386870244).
Provider details
- NPI number
- 1386870244
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- -6279620 (WI)
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
17 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
64 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) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 38 | $108 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 14 | $133 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 12 | $83 |
Typical Medicare-allowed amounts for these services range $83–$133 (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
- 2009-06-05
- Last updated
- 2024-07-15
- Certified
- 2024-07-15
Frequently asked questions
- What is Tonia Greenwood's NPI number?
- Tonia Greenwood's National Provider Identifier (NPI) is 1386870244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tonia Greenwood's specialty?
- Tonia Greenwood is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Tonia Greenwood located?
- Tonia Greenwood's practice location on file with NPPES is 5000 Memorial Dr, Two Rivers, WI 54241-3900.
- What is Tonia Greenwood's phone number?
- The practice phone number listed in the NPPES registry for Tonia Greenwood is (920) 686-5734.
- Does Tonia Greenwood accept Medicare?
- Tonia Greenwood is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tonia Greenwood's NPI active?
- Yes — Tonia Greenwood's NPI (1386870244) is active in the NPPES registry as of the last update on 2024-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.