Marcus Groffman, CRNA
NPI 1396933891 · Certified Registered Nurse Anesthetist · Colville, WA
Marcus Groffman, CRNA is a Certified Registered Nurse Anesthetist provider in Colville, WA (NPI 1396933891).
Provider details
- NPI number
- 1396933891
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- AP30002418 (WA)
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 tenure38% of score
18 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
- 2007-10-09
- Last updated
- 2007-10-09
Frequently asked questions
- What is Marcus Groffman's NPI number?
- Marcus Groffman's National Provider Identifier (NPI) is 1396933891, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Groffman's specialty?
- Marcus Groffman is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcus Groffman located?
- Marcus Groffman's practice location on file with NPPES is 982 E Columbia Ave, Colville, WA 99114-3316.
- What is Marcus Groffman's phone number?
- The practice phone number listed in the NPPES registry for Marcus Groffman is (509) 685-2461.
- Is Marcus Groffman's NPI active?
- Yes — Marcus Groffman's NPI (1396933891) is active in the NPPES registry as of the last update on 2007-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.