Dr. Jimmy Ji Feng, MD
- Part D claims, 2024
- 209
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2021
- Practice address
- 1420 Willow Pass Rd, Concord, CA 94520-5823
- Practice phone
- Call (510) 215-3730
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Central County - Adult Mental Health Services
Physician office · Concord, California
Find Dr. Feng'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. Jimmy Ji Feng is a psychiatrist in Concord, California
Dr. Feng practices at Central County - Adult Mental Health Services in Concord, California.
Dr. Feng's NPI, 1992382287, was assigned on March 24, 2021. Dr. Feng holds New York license 334435.
- NPI
- 1992382287NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305348020
- NPI enumeration date
- March 24, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (510) 215-3730
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jimmy Ji Feng practices at Central County - Adult Mental Health Services in Concord, California
Dr. Feng's primary practice is Central County - Adult Mental Health Services, at 1420 Willow Pass Rd, Concord, CA 94520-5823. The practice phone is (510) 215-3730.
- Central County - Adult Mental Health Services1420 Willow Pass Rd, Concord, CA 94520-5823Phone(510) 215-3730
Source: Dmand AI Affiliation Data
Dr. Jimmy Ji Feng is affiliated with 1 site of care and 1 medical group
Dr. Feng's primary practice is Central County - Adult Mental Health Services in Concord, California. The medical group on file is West County Adult Mental Health Services.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jimmy Ji Feng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feng practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Central County - Adult Mental Health Services | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jimmy Ji Feng is one of 6,803 psychiatrists in California
Psychiatry is Dr. Feng's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Feng's licenses on file in 2 states: New York and California.
Specialties and state licenses
- Psychiatry, New YorkPrimary
- California license
Psychiatrists near Dr. Feng
Counts of psychiatrists 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. Jimmy Ji Feng's patients have a median age of 36
Across all payers, Dmand AI patient panel data puts Dr. Feng's median patient age at 36, with 29% women.
Dr. Feng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women29%
- Men71%
Source: Dmand AI Patient Panel Data
Dr. Jimmy Ji Feng wrote 209 Medicare Part D claims in 2024
In 2024, Dr. Feng wrote 209 Medicare Part D claims for 25 patients. 95% of them were for generic drugs. CMS names the drug for 117 of them, across 7 drugs with 11 or more claims each, at $1,424 in total drug cost.
Dr. Feng's Part D claims by kind of drug, 2024
- Generic198 claims95%
- Brand-name11 claims5%
Dr. Feng'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 Dr. Feng's Part D claims, 2024
- Antipsychotics, patients 65 and over11%23 of 209 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
Dr. Jimmy Ji Feng offers telehealth to Medicare patients
Dr. Feng accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Feng as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Jimmy Ji Feng'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 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) |
| 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. Jimmy Ji Feng
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. Jimmy Ji Feng's NPI number?
Dr. Jimmy Ji Feng's NPI number is 1992382287. It was assigned on March 24, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Jimmy Ji Feng?
Dr. Jimmy Ji Feng is a psychiatrist in Concord, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Jimmy Ji Feng practice?
Dr. Feng practices at 1420 Willow Pass Rd, Concord, CA 94520-5823. Dr. Feng's primary practice is Central County - Adult Mental Health Services in Concord, California.
What is Dr. Jimmy Ji Feng's office phone number?
The practice phone on file for Dr. Feng is (510) 215-3730.
What is Dr. Jimmy Ji Feng's medical license number?
Dr. Feng holds New York license 334435, one of the licenses on file in 2 states.
Which states has Dr. Jimmy Ji Feng been licensed in?
Dmand AI has state licenses on file for Dr. Feng in New York and California.
What medical group is Dr. Jimmy Ji Feng part of?
Dr. Feng is linked to West County Adult Mental Health Services.
Does Dr. Jimmy Ji Feng accept Medicare?
Yes. CMS lists Dr. Feng as accepting Medicare assignment.
Does Dr. Jimmy Ji Feng offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Feng as offering telehealth services.
What drugs does Dr. Jimmy Ji Feng prescribe most?
In 2024 Medicare Part D data, Dr. Feng's most prescribed drugs by claims were Escitalopram Oxalate, Bupropion XL and Gabapentin.
How long has Dr. Jimmy Ji Feng been practicing?
Dr. Feng graduated from medical school in 2021, 5 years ago.
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