Crystal Johnson, FNP-C
NPI 1902588726 · Family Nurse Practitioner · Chino, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Johnson, FNP-C is a Family Nurse Practitioner provider in Chino, CA (NPI 1902588726).
Provider details
- NPI number
- 1902588726
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95026258 (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
2 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 61 | 19 |
| Levothyroxine Sodium | 55 | 21 |
| Atorvastatin Calcium | 52 | 24 |
| Amlodipine Besylate | 49 | 17 |
| Losartan Potassium | 49 | 21 |
| Lisinopril | 31 | 12 |
| Semaglutide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-08-01
- Last updated
- 2023-08-01
- Certified
- 2023-08-01
Frequently asked questions
- What is Crystal Johnson's NPI number?
- Crystal Johnson's National Provider Identifier (NPI) is 1902588726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Johnson's specialty?
- Crystal Johnson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Johnson located?
- Crystal Johnson's practice location on file with NPPES is 13763 Harvard Ave, Chino, CA 91710-7109.
- What is Crystal Johnson's phone number?
- The practice phone number listed in the NPPES registry for Crystal Johnson is (707) 365-3599.
- Does Crystal Johnson accept Medicare?
- Crystal Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Johnson's NPI active?
- Yes — Crystal Johnson's NPI (1902588726) is active in the NPPES registry as of the last update on 2023-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.