Frederick Grubstad
NPI 1477039667 · Psychiatric/Mental Health Nurse Practitioner · Campo, CA
Frederick Grubstad is a Psychiatric/Mental Health Nurse Practitioner provider in Campo, CA (NPI 1477039667).
Provider details
- NPI number
- 1477039667
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 95019498 (CA)
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
7 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
- 2018-07-11
- Last updated
- 2022-07-18
- Certified
- 2022-07-18
Frequently asked questions
- What is Frederick Grubstad's NPI number?
- Frederick Grubstad's National Provider Identifier (NPI) is 1477039667, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Grubstad's specialty?
- Frederick Grubstad is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Frederick Grubstad located?
- Frederick Grubstad's practice location on file with NPPES is 1777 Buckman Springs Rd, Campo, CA 91906-2022.
- What is Frederick Grubstad's phone number?
- The practice phone number listed in the NPPES registry for Frederick Grubstad is (619) 478-5696.
- Is Frederick Grubstad's NPI active?
- Yes — Frederick Grubstad's NPI (1477039667) is active in the NPPES registry as of the last update on 2022-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.