Catherine Sullivan, NURSE PRACTITIONER
NPI 1821335688 · Family Nurse Practitioner · Pioneer, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Sullivan, NURSE PRACTITIONER is a Family Nurse Practitioner provider in Pioneer, CA (NPI 1821335688).
Provider details
- NPI number
- 1821335688
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NURSE PRACTITIONER
- Sex
- Female
- Sole proprietor
- Yes
- License
- 431982 (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
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 216 | 67 |
| Lisinopril | 194 | 59 |
| Amlodipine Besylate | 119 | 41 |
| Levothyroxine Sodium | 115 | 33 |
| Metformin Hcl | 105 | 37 |
| Omeprazole | 90 | 28 |
| Albuterol Sulfate |
Practice location
Mailing address
Additional practice locations (1)
- 12140 New York Ranch RdJackson, CA 95642-9407Phone: (209) 257-2400Fax: (209) 257-2403
Registry dates
- Enumerated
- 2013-01-12
- Last updated
- 2025-05-30
- Certified
- 2025-05-30
Frequently asked questions
- What is Catherine Sullivan's NPI number?
- Catherine Sullivan's National Provider Identifier (NPI) is 1821335688, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Sullivan's specialty?
- Catherine Sullivan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Sullivan located?
- Catherine Sullivan's practice location on file with NPPES is 14750 Marilyn Ln, Pioneer, CA 95666-9754.
- What is Catherine Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Catherine Sullivan is (209) 257-2400.
- Does Catherine Sullivan accept Medicare?
- Catherine Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Sullivan's NPI active?
- Yes — Catherine Sullivan's NPI (1821335688) is active in the NPPES registry as of the last update on 2025-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.