Crystal Chavez, PA-C
NPI 1912539271 · Physician Assistant · Stockton, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Chavez, PA-C is a Physician Assistant provider in Stockton, CA (NPI 1912539271).
Provider details
- NPI number
- 1912539271
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 57917 (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 tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
595 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 149 | $63 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 124 | $123 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 123 | $49 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 51 | $132 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 50 | $9 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 120 | 21 |
| Atorvastatin Calcium | 69 | 17 |
| Levothyroxine Sodium | 65 | — |
| Losartan Potassium | 51 | 12 |
| Apixabanbrand: Eliquis | 49 | — |
| Escitalopram Oxalate | 46 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$210 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-02-05
- Last updated
- 2026-03-02
- Certified
- 2026-03-02
Frequently asked questions
- What is Crystal Chavez's NPI number?
- Crystal Chavez's National Provider Identifier (NPI) is 1912539271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Chavez's specialty?
- Crystal Chavez is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Chavez located?
- Crystal Chavez's practice location on file with NPPES is 1617 N California St Ste 2a, Stockton, CA 95204-6117.
- What is Crystal Chavez's phone number?
- The practice phone number listed in the NPPES registry for Crystal Chavez is (209) 466-8546.
- Does Crystal Chavez accept Medicare?
- Crystal Chavez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Chavez's NPI active?
- Yes — Crystal Chavez's NPI (1912539271) is active in the NPPES registry as of the last update on 2026-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.