Javi Hartenstine, D.O.
NPI 1932462413 · Anatomic Pathology & Clinical Pathology Physician · Pleasanton, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Javi Hartenstine, D.O. is a Anatomic Pathology & Clinical Pathology Physician provider in Pleasanton, CA (NPI 1932462413).
Provider details
- NPI number
- 1932462413
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 6530 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
722 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 275 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 114 | $26 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 85 | $77 |
| Cell Examination of Specimen, Concentration Technique88108 | 68 | $21 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 52 | $33 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 34 | $65 |
Practice location
Mailing address
Additional practice locations (4)
- 4301 Northstar WayModesto, CA 95356Phone: (209) 577-1200Fax: (209) 577-6517
- 1800 N California StStockton, CA 95204-6019Phone: (209) 943-2000
- 22 S Greene StNbw43Baltimore, MD 21201-1544Phone: (410) 328-5525Fax: (410) 328-5508
- 4401 S Western AveOklahoma City, OK 73109-3413Phone: (405) 636-7251Fax: (405) 842-3146
Registry dates
- Enumerated
- 2012-06-20
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Javi Hartenstine's NPI number?
- Javi Hartenstine's National Provider Identifier (NPI) is 1932462413, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Javi Hartenstine's specialty?
- Javi Hartenstine is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Javi Hartenstine located?
- Javi Hartenstine's practice location on file with NPPES is 5555 W Las Positas Blvd, Pleasanton, CA 94588-4000.
- What is Javi Hartenstine's phone number?
- The practice phone number listed in the NPPES registry for Javi Hartenstine is (925) 847-3000.
- Does Javi Hartenstine accept Medicare?
- Javi Hartenstine is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Javi Hartenstine's NPI active?
- Yes — Javi Hartenstine's NPI (1932462413) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.