Jon Keller, MD
NPI 1235225558 · Anatomic Pathology & Clinical Pathology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jon Keller, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Palo Alto, CA (NPI 1235225558).
Provider details
- NPI number
- 1235225558
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G88732 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
331,931 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 66,295 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 32,096 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 31,399 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 19,834 | $13 |
| Hemoglobin A1c Level83036 | 16,456 | $10 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 14,604 | $16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2020-05-28
- Certified
- 2020-05-28
Frequently asked questions
- What is Jon Keller's NPI number?
- Jon Keller's National Provider Identifier (NPI) is 1235225558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jon Keller's specialty?
- Jon Keller is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Jon Keller located?
- Jon Keller's practice location on file with NPPES is 795 El Camino Real, Palo Alto, CA 94301-2302.
- What is Jon Keller's phone number?
- The practice phone number listed in the NPPES registry for Jon Keller is (650) 321-4121.
- Does Jon Keller accept Medicare?
- Jon Keller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jon Keller's NPI active?
- Yes — Jon Keller's NPI (1235225558) is active in the NPPES registry as of the last update on 2020-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.