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Edit this profileAt a glance
- 795 El Camino Real, Palo Alto, CA 94301
About Dr. Keller
Based in Palo Alto, CA, Jon Keller, MD is listed in the NPI registry under anatomic & clinical pathology. According to Medicare claims data, Jon cared for 191,164 Medicare patients across 272,357 services. The services billed most often include insertion of needle into vein for collection of blood sample, complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count, and blood test, comprehensive group of blood chemicals. NPI 1235225558 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (650) 321-4121
- Email not available
Practice Locations
795 EL CAMINO REAL
Palo Alto, CA 94301
Conditions Evaluated or Diagnosed
Within Anatomic & Clinical Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Autoimmune & Joint
Blood cancer
Blood chemistry
Blood Disorders
- Bleeding Disorders
- Blood Clotting Gene Mutation
- Hemochromatosis
- High White Blood Cell Count
- Iron-deficiency anemia
Blood disorders
Cancer & Tumors
- Breast Cancer Biopsy Findings
- Leukemia
- Lipoma
- Prostate Cancer Biopsy Results
- Suspicious Lung Spot
- Swollen Lymph Nodes
Cervical & Women's Health
Cervical Health
Digestive pathology
Digestive System
- Abnormal Liver Enzymes
- Celiac disease
- H. pylori infection
- Inflammatory bowel disease
- Precancerous Colon Polyps
Hormones
Hormones & Metabolism
Infections
Infectious disease
Kidney & Urinary
Liver pathology
Prostate
Skin
Skin pathology
Urine & kidney
Procedures & services
Biopsy & Tissue Testing
- Bone Marrow Biopsy Testing
- Colon Polyp Biopsy Examination
- Fine Needle Aspiration Biopsy
- Frozen Section During Surgery
- Skin Biopsy Lab Review
- Special Tissue Staining
- Thyroid Biopsy Examination
Blood chemistry
Cancer & Genetic Testing
- Chromosome And Genetic Testing
- Flow Cytometry Test
- Liquid Biopsy
- Tumor Biomarker Testing
- Tumor Marker Testing
Cancer screening
Cardiac testing
Cervical & Women's Health
Fertility testing
Hormone testing
Immunology
Infection & Microbiology Tests
- Blood Culture Test
- Colon cancer screening consult
- H. Pylori Breath Test
- STI and STD Screening
- Urine sediment test
Infectious disease
Inflammation testing
Pathology Consultations
Post-Mortem & Forensic
Routine blood testing
Routine Blood Tests
- Blood Clotting Test
- Cholesterol screening
- Hemoglobin A1c Test
- Kidney Function Blood Test
- Liver Function Blood Test
- Routine blood work
- Thyroid Blood Test
Specialty Lab Panels
Tissue biopsy
Toxicology
Transfusion testing
Urine testing
Procedures Most Often Billed to Medicare
272,357 services · 191,164 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
66,295 | More than most peers in Anatomic & Clinical Pathology |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
32,096 | More than most peers in Anatomic & Clinical Pathology |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
31,399 | More than most peers in Anatomic & Clinical Pathology |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
19,834 | More than most peers in Anatomic & Clinical Pathology |
| Hemoglobin a1c level | Lab test | 83036 |
16,456 | More than most peers in Anatomic & Clinical Pathology |
| Blood test, thyroid stimulating hormone (tsh) | Lab test | 84443 |
14,604 | More than most peers in Anatomic & Clinical Pathology |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
13,352 | More than most peers in Anatomic & Clinical Pathology |
| Creatinine level to test for kidney function or muscle injury | Lab test | 82570 |
8,259 | More than most peers in Anatomic & Clinical Pathology |
| Manual urinalysis test with examination using microscope, automated | Lab test | 81001 |
7,632 | More than most peers in Anatomic & Clinical Pathology |
| Urine microalbumin (protein) level | Lab test | 82043 |
6,099 | More than most peers in Anatomic & Clinical Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other anatomic & clinical pathology specialists in Palo Alto 7
Same specialty, same city.
Also performs Insertion of needle into vein for collection of blood sample 4
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Keller?
Dr. Keller is an anatomic & clinical pathology in Palo Alto, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Keller's address?
Dr. Keller is listed at 795 El Camino Real, Palo Alto, CA 94301. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Keller?
The number on file is (650) 321-4121. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Keller's NPI number?
Dr. Keller's National Provider Identifier is 1235225558. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Keller been practicing?
Dr. Keller has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Dr. Keller perform?
According to Medicare billing data, Dr. Keller performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Keller confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Keller. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.