Jonathan Humphrey, M.D.
NPI 1689644866 · Family Medicine Physician · Danville, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Humphrey, M.D. is a Family Medicine Physician provider in Danville, CA (NPI 1689644866).
Provider details
- NPI number
- 1689644866
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G66292 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
3,663 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 947 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 851 | $154 |
| Urinalysis, Manual Test81002 | 462 | $3 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 369 | $158 |
| Colorectal Cancer Screening; Fecal Occult Blood Test, Immunoassay, 1-3 SimultaneousG0328 | 154 | $18 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 147 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 178 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 591 | 230 |
| Levothyroxine Sodium | 493 | 190 |
| Amlodipine Besylate | 413 | 151 |
| Rosuvastatin Calcium | 411 | 170 |
| Zolpidem Tartrate | 238 | 79 |
| Gabapentin | 228 | 87 |
| Tamsulosin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,610 across 155 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
- 2006-01-23
- Last updated
- 2025-02-07
- Certified
- 2025-02-07
Frequently asked questions
- What is Jonathan Humphrey's NPI number?
- Jonathan Humphrey's National Provider Identifier (NPI) is 1689644866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Humphrey's specialty?
- Jonathan Humphrey is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Humphrey located?
- Jonathan Humphrey's practice location on file with NPPES is 4165 Blackhawk Plaza Cir, Danville, CA 94506-4904.
- What is Jonathan Humphrey's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Humphrey is (925) 736-7070.
- Does Jonathan Humphrey accept Medicare?
- Jonathan Humphrey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Humphrey's NPI active?
- Yes — Jonathan Humphrey's NPI (1689644866) is active in the NPPES registry as of the last update on 2025-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.