Marissa Lowenthal, M.D.
NPI 1205059847 · Anesthesiology Physician · Greenfield, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Lowenthal, M.D. is a Anesthesiology Physician provider in Greenfield, WI (NPI 1205059847).
Provider details
- NPI number
- 1205059847
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 61825 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-11
- Last updated
- 2024-09-16
- Certified
- 2024-09-16
Frequently asked questions
- What is Marissa Lowenthal's NPI number?
- Marissa Lowenthal's National Provider Identifier (NPI) is 1205059847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Lowenthal's specialty?
- Marissa Lowenthal is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Marissa Lowenthal located?
- Marissa Lowenthal's practice location on file with NPPES is 9000 W Sura Ln, Greenfield, WI 53228-3477.
- What is Marissa Lowenthal's phone number?
- The practice phone number listed in the NPPES registry for Marissa Lowenthal is (414) 246-6800.
- Does Marissa Lowenthal accept Medicare?
- Marissa Lowenthal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Lowenthal's NPI active?
- Yes — Marissa Lowenthal's NPI (1205059847) is active in the NPPES registry as of the last update on 2024-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.