Dr. John C. Ling, MD
- Industry payments
- $229
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3833 Worsham Ave, Long Beach, CA 90808
- Practice phone
- Call (530) 756-5807
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ling's professional email, personal email and mobile number
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Dr. John C. Ling is a diagnostic radiologist in Long Beach, California
Dr. Ling practices in Long Beach, California.
Dr. Ling's NPI, 1740368588, was assigned on November 1, 2006. Dr. Ling graduated from UCSF School of Medicine in 1969. Dr. Ling holds California license A23841.
- NPI
- 1740368588NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Practice phone
- (530) 756-5807
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1969
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. John C. Ling's practice address is in Long Beach, California
Dr. Ling's practice address in the NPI Registry is 3833 Worsham Ave, Long Beach, CA 90808, in Los Angeles County. The practice phone is (530) 756-5807.
- NPI Registry address3833 Worsham Ave, Long Beach, CA 90808 · Los Angeles CountyPhone(530) 756-5807
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. John C. Ling's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ling practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Ling's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John C. Ling is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Ling's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Ling is board certified in diagnostic radiology by the American Board of Radiology. Dr. Ling is licensed in California.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
Diagnostic radiologists near Dr. Ling
Counts of diagnostic radiologists 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 C. Ling received $229 in industry payments from 2019 to 2025
CMS Open Payments shows 8 general payments to Dr. Ling from 3 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $107.
General payments to Dr. Ling by program year, 2019 to 2025
Companies that paid Dr. Ling the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John C. Ling graduated from UCSF School of Medicine
Dr. Ling graduated from UCSF School of Medicine in 1969.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Sources for Dr. John C. Ling'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| 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 Dr. John C. Ling
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What is Dr. John C. Ling's NPI number?
Dr. John C. Ling's NPI number is 1740368588. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John C. Ling?
Dr. John C. Ling is a diagnostic radiologist in Long Beach, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. John C. Ling practice?
Dr. Ling practices at 3833 Worsham Ave, Long Beach, CA 90808.
What is Dr. John C. Ling's office phone number?
The practice phone on file for Dr. Ling is (530) 756-5807.
What is Dr. John C. Ling's medical license number?
Dr. Ling holds California license A23841.
Is Dr. John C. Ling board certified?
Yes. Dr. Ling is board certified in diagnostic radiology by the American Board of Radiology.
Where did Dr. John C. Ling go to medical school?
Dr. Ling graduated from UCSF School of Medicine in 1969.
Has Dr. John C. Ling received payments from drug or device companies?
CMS Open Payments shows $229 in general payments to Dr. Ling from 3 companies from 2019 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Dr. John C. Ling been practicing?
Dr. Ling graduated from medical school in 1969, 57 years ago.
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