IndividualActive
Gregory Weisswasser, ND
NPI 1265595599 · Naturopath · Grass Valley, CA
Gregory Weisswasser, ND is a Naturopath provider in Grass Valley, CA (NPI 1265595599).
Provider details
- NPI number
- 1265595599
- Entity type
- Individual
- Primary specialty
- NaturopathOther Service Providers
- Credential
- ND
- Sex
- Male
- Sole proprietor
- Yes
- License
- ND-14 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(90/100 index)
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
1097 E Main St Ste C
Grass Valley, CA 95945-5718
Phone: (530) 271-7123
Fax: (530) 271-7125
Street-level locationGet directions
Mailing address
11654 Buckeye Cir
Penn Valley, CA 95946-9439
Registry dates
- Enumerated
- 2006-12-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Weisswasser's NPI number?
- Gregory Weisswasser's National Provider Identifier (NPI) is 1265595599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Weisswasser's specialty?
- Gregory Weisswasser is listed in the NPPES registry with a primary specialty of Naturopath (Other Service Providers).
- Where is Gregory Weisswasser located?
- Gregory Weisswasser's practice location on file with NPPES is 1097 E Main St Ste C, Grass Valley, CA 95945-5718.
- What is Gregory Weisswasser's phone number?
- The practice phone number listed in the NPPES registry for Gregory Weisswasser is (530) 271-7123.
- Is Gregory Weisswasser's NPI active?
- Yes — Gregory Weisswasser's NPI (1265595599) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.