Dr. John D. Tran, MD
- Part D claims, 2024
- 490
- Hospital affiliations
- 1
- Industry payments
- $137
- Medical groups
- 2
- Insurance carriers
- 1
- Practice address
- 2615 Chester Avenue, Bakersfield, CA 93301
- Practice phone
- Call (661) 395-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tran'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 D. Tran is an internist in Bakersfield, California
Dr. Tran practices at Adventist Health Bakersfield in Bakersfield, California, part of Adventist Health.
Dr. Tran's NPI, 1992865182, was assigned on December 11, 2006. Dr. Tran graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1993. Dr. Tran holds California license G81140.
- NPI
- 1992865182NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173712288
- NPI enumeration date
- December 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (661) 395-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John D. Tran practices at Adventist Health Bakersfield in Bakersfield, California
Dr. Tran's primary practice is Adventist Health Bakersfield, at 2615 Chester Avenue, Bakersfield, CA 93301 in Kern County. The practice phone is (661) 395-3000.
- Adventist Health Bakersfield2615 Chester Avenue, Bakersfield, CA 93301 · Kern CountyPhone(661) 395-3000
Source: Dmand AI Affiliation Data
Dr. John D. Tran is affiliated with 2 sites of care and 2 medical groups
Dr. Tran's primary practice is Adventist Health Bakersfield in Bakersfield, California, part of Adventist Health. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Tran to 1 more group practice or clinic and 1 medical group, each 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 D. Tran's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tran practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Bakersfield | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John D. Tran is one of 16,751 internists in California
Internal medicine is Dr. Tran's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tran is board certified in internal medicine by the American Board of Internal Medicine. Dr. Tran is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Tran
Counts of internists 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 D. Tran's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Tran's median patient age at 66, with 50% women.
Dr. Tran's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. John D. Tran wrote 490 Medicare Part D claims in 2024
In 2024, Dr. Tran wrote 490 Medicare Part D claims for 146 patients. 84% of them were for generic drugs. CMS names the drug for 277 of them, across 14 drugs with 11 or more claims each, at $10,129 in total drug cost.
Dr. Tran's Part D claims by kind of drug, 2024
- Generic414 claims84%
- Brand-name and other76 claims16%
Dr. Tran'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. Tran's Part D claims, 2024
- Antibiotics21%102 of 490 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 Dr. John D. Tran takes part in Medicare
Dr. Tran 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 D. Tran received $137 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Tran from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $137.
Companies that paid Dr. Tran the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John D. Tran graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Tran graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1993.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John D. Tran accepts plans from 1 insurance carrier
Dr. Tran is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Tran accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. John D. Tran'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 |
| 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 D. Tran
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 D. Tran's NPI number?
Dr. John D. Tran's NPI number is 1992865182. It was assigned on December 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John D. Tran?
Dr. John D. Tran is an internist in Bakersfield, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John D. Tran practice?
Dr. Tran practices at 2615 Chester Avenue, Bakersfield, CA 93301. Dr. Tran's primary practice is Adventist Health Bakersfield in Bakersfield, California, part of Adventist Health. Dmand AI also links Dr. Tran to 1 group practice or clinic and 1 medical group.
What is Dr. John D. Tran's office phone number?
The practice phone on file for Dr. Tran is (661) 395-3000.
What is Dr. John D. Tran's medical license number?
Dr. Tran holds California license G81140.
Which hospitals is Dr. John D. Tran affiliated with?
Dr. Tran practices at Adventist Health Bakersfield in Bakersfield, California.
What medical group is Dr. John D. Tran part of?
Dr. Tran is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Tran to 1 more medical group.
Does Dr. John D. Tran accept Medicare?
Yes. CMS lists Dr. Tran as accepting Medicare assignment.
Is Dr. John D. Tran board certified?
Yes. Dr. Tran is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. John D. Tran go to medical school?
Dr. Tran graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1993.
Show 4 more questionsShow fewer questions
What drugs does Dr. John D. Tran prescribe most?
In 2024 Medicare Part D data, Dr. Tran's most prescribed drugs by claims were Cefuroxime, Pantoprazole Sodium and Furosemide.
Has Dr. John D. Tran received payments from drug or device companies?
CMS Open Payments shows $137 in general payments to Dr. Tran from 1 company from 2024 to 2024. The largest total came from Abiomed.
How long has Dr. John D. Tran been practicing?
Dr. Tran graduated from medical school in 1993, 33 years ago.
What insurance does Dr. John D. Tran accept?
Dr. Tran is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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