Dr. John F. Walker Jr., MD
- Medicare services, 2024
- 39
- Medicare patients, 2024
- 140
- Hospital affiliations
- 1
- Medical group
- 1
- Insurance carriers
- 12
- Practice address
- 751 Medical Center Court, Chula Vista, CA 91911
- Practice phone
- Call (619) 502-5800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Walker'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.
Dr. John F. Walker Jr. is an anesthesiologist in Chula Vista, California
Dr. Walker practices at Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare.
Dr. Walker's NPI, 1114951696, was assigned on July 10, 2006. Dr. Walker graduated from UCSF School of Medicine in 1986. Dr. Walker holds California license G70121.
- NPI
- 1114951696NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274435714
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 502-5800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John F. Walker Jr. practices at Sharp Chula Vista Medical Center in Chula Vista, California
Dr. Walker's primary practice is Sharp Chula Vista Medical Center, at 751 Medical Center Court, Chula Vista, CA 91911 in San Diego County. The practice phone is (619) 502-5800.
- Sharp Chula Vista Medical Center751 Medical Center Court, Chula Vista, CA 91911 · San Diego CountyPhone(619) 502-5800
Source: Dmand AI Affiliation Data
Dr. John F. Walker Jr. is affiliated with 2 sites of care and 1 medical group
Dr. Walker's primary practice is Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare. The medical group on file is Anesthesia Service Medical Group (ASMG). Dmand AI also links Dr. Walker to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John F. Walker Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Chula Vista Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Sharp HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John F. Walker Jr. is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Walker is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Walker's licenses on file in 4 states: California, Maine, Arizona and Ohio.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Maine license
- Arizona license
- Ohio license
Anesthesiologists near Dr. Walker
Counts of anesthesiologists 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
Dr. John F. Walker Jr. billed Medicare for 39 services in 2024
CMS data shows 39 Medicare services from Dr. Walker across 2 procedure codes in 2024, for 140 Medicare patients. Medicare paid $4,500 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 302024: 2613%
- Anesthesia
- 2023: 122024: 138%
- Imaging
- 2023: 362024: 0100%
- Tests and treatments
- 2023: 502024: 0100%
Dr. Walker compared with the California median for anesthesiologists, 2024
- Dr. Walker
- California median
- Medicare services
- 39vs 7246% below
- Medicare patients
- 140vs 143Close to median
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Walker's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Walker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walker and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John F. Walker Jr. treated 140 Medicare patients in 2024, average age 75
CMS counts 140 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 64 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 58% are also on Medicaid. Their average risk score is 2.69, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 63, with 60% women.
Dr. Walker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Walker's Medicare patients by sex, 2024
- Women6446%
- Men7654%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes61%
- Heart failure54%
- Ischemic heart disease54%
- Arthritis46%
- Chronic kidney disease44%
- Atrial fibrillation38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John F. Walker Jr. takes part in Medicare
Dr. Walker 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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Dr. John F. Walker Jr. graduated from UCSF School of Medicine
Dr. Walker graduated from UCSF School of Medicine in 1986.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. John F. Walker Jr. accepts plans from 12 insurance carriers
Dr. Walker is in network with 12 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- HCSC
- Alliant Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +4 more carriersWith a free account
Plan types Dr. Walker accepts, by number of carriers
- PPO7
- HMO6
- EPO3
- Medicare2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. John F. Walker Jr.'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. John F. Walker Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John F. Walker Jr.'s NPI number?
Dr. John F. Walker Jr.'s NPI number is 1114951696. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John F. Walker Jr.?
Dr. John F. Walker Jr. is an anesthesiologist in Chula Vista, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John F. Walker Jr. practice?
Dr. Walker practices at 751 Medical Center Court, Chula Vista, CA 91911. Dr. Walker's primary practice is Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare. Dmand AI also links Dr. Walker to 1 group practice or clinic.
What is Dr. John F. Walker Jr.'s office phone number?
The practice phone on file for Dr. Walker is (619) 502-5800.
What is Dr. John F. Walker Jr.'s medical license number?
Dr. Walker holds California license G70121, one of the licenses on file in 4 states.
Which states has Dr. John F. Walker Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Walker in California (1990 to 2026), Maine (1997 to 2027), Arizona (1991 to 1992) and Ohio (1989 to 1990).
Which hospitals is Dr. John F. Walker Jr. affiliated with?
Dr. Walker practices at Sharp Chula Vista Medical Center in Chula Vista, California.
What medical group is Dr. John F. Walker Jr. part of?
Dr. Walker is linked to Anesthesia Service Medical Group (ASMG).
Does Dr. John F. Walker Jr. accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 39 services in 2024, and Dr. Walker accepts Medicare assignment.
How many Medicare patients does Dr. John F. Walker Jr. see?
CMS counts 140 Medicare patients who saw Dr. Walker in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
Is Dr. John F. Walker Jr. board certified?
Yes. Dr. Walker is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. John F. Walker Jr. bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were surgery: heart and blood vessels (36620) and anesthesia (01926).
Where did Dr. John F. Walker Jr. go to medical school?
Dr. Walker graduated from UCSF School of Medicine in 1986.
How long has Dr. John F. Walker Jr. been practicing?
Dr. Walker graduated from medical school in 1986, 40 years ago.
What insurance does Dr. John F. Walker Jr. accept?
Dr. Walker is in network with 12 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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