William Joseph Johncox, PA
- Part D claims, 2024
- 4,384
- Hospital affiliations
- 2
- Industry payments
- $421
- Medical group
- 1
- State license
- 1
- Practice address
- 7152 North Sharon Street, Fresno, CA 93720
- Practice phone
- Call (559) 447-4898
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Comprehensive Pain Management Center - Fresno
Surgery Center - Medicare-Certified · Fresno, California
Find William Johncox's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
William Joseph Johncox is a physician assistant in Fresno, California
William Johncox practices at Comprehensive Pain Management Center - Fresno in Fresno, California.
William Johncox's NPI, 1023124278, was assigned on August 21, 2006. William Johncox holds California license 13919.
- NPI
- 1023124278NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153327671
- NPI enumeration date
- August 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (559) 447-4898
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Joseph Johncox practices at Comprehensive Pain Management Center - Fresno in Fresno, California
William Johncox's primary practice is Comprehensive Pain Management Center - Fresno, at 7152 North Sharon Street, Fresno, CA 93720. The practice phone is (559) 447-4898.
- Comprehensive Pain Management Center - Fresno7152 North Sharon Street, Fresno, CA 93720Phone(559) 447-4898
Source: Dmand AI Affiliation Data
William Joseph Johncox is affiliated with 4 sites of care and 1 medical group
William Johncox's primary practice is Comprehensive Pain Management Center - Fresno in Fresno, California. William Johncox is also affiliated with Saint Agnes Medical Center. The medical group on file is California Advanced Pain & Spine Specialists. Dmand AI also links William Johncox to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William Joseph Johncox's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Johncox practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Comprehensive Pain Management Center - Fresno | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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William Joseph Johncox is one of 2,381 physician assistants in California
Medical is William Johncox's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. William Johncox is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). William Johncox is licensed in California.
Specialties and state licenses
- Medical physician assistant, CaliforniaPrimary
Clinical focus
Dmand AI lists arthritis, lower back pain and spinal stenosis among the conditions William Johncox treats.
Physician assistants near William Johncox
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
William Joseph Johncox's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts William Johncox's median patient age at 68, with 55% women.
William Johncox's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
William Joseph Johncox wrote 4,384 Medicare Part D claims in 2024
In 2024, William Johncox wrote 4,384 Medicare Part D claims for 696 patients. 94% of them were for generic drugs. CMS names the drug for 4,287 of them, across 24 drugs with 11 or more claims each, at $231,301 in total drug cost.
William Johncox's Part D claims by kind of drug, 2024
- Generic4,126 claims94%
- Brand-name258 claims6%
William Johncox's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in William Johncox's Part D claims, 2024
- Opioids80%3,495 of 4,384 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How William Joseph Johncox takes part in Medicare
William Johncox accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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William Joseph Johncox received $421 in industry payments from 2024 to 2025
CMS Open Payments shows 15 general payments to William Johncox from 6 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $163.
General payments to William Johncox by program year, 2024 to 2025
Companies that paid William Johncox the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
William Joseph Johncox is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for William Joseph Johncox's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about William Joseph Johncox
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Joseph Johncox's NPI number?
William Joseph Johncox's NPI number is 1023124278. It was assigned on August 21, 2006, and it is active in the NPI Registry.
What does William Joseph Johncox specialize in?
William Joseph Johncox is a physician assistant in Fresno, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does William Joseph Johncox practice?
William Johncox practices at 7152 North Sharon Street, Fresno, CA 93720. William Johncox's primary practice is Comprehensive Pain Management Center - Fresno in Fresno, California. Dmand AI also links William Johncox to 1 hospital and 1 group practice or clinic.
What is William Joseph Johncox's office phone number?
The practice phone on file for William Johncox is (559) 447-4898.
What is William Joseph Johncox's medical license number?
William Johncox holds California license 13919.
Which hospitals is William Joseph Johncox affiliated with?
William Johncox is affiliated with Saint Agnes Medical Center. Dmand AI links William Johncox to 1 more hospital.
What medical group is William Joseph Johncox part of?
William Johncox is linked to California Advanced Pain & Spine Specialists.
Does William Joseph Johncox accept Medicare?
Yes. CMS lists William Johncox as accepting Medicare assignment.
Is William Joseph Johncox board certified?
Yes. William Johncox is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What drugs does William Joseph Johncox prescribe most?
In 2024 Medicare Part D data, William Johncox's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Methadone HCl and Oxycodone-Acetaminophen.
Has William Joseph Johncox received payments from drug or device companies?
CMS Open Payments shows $421 in general payments to William Johncox from 6 companies from 2024 to 2025. The largest total came from Medtronic, Inc.
How long has William Joseph Johncox been practicing?
William Johncox graduated from medical school in 1997, 29 years ago.
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