Dr. Thierry M. Jahan, MD
- Medicare services, 2020
- 174
- Part D claims, 2020
- 62
- Publications
- 55
- Clinical trials
- 5
- Industry payments
- $123
- Practice address
- 505 Parnassus Ave, San Francisco, CA 94131
- Practice phone
- Call (415) 353-9888
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Jahan'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. Thierry M. Jahan is a medical oncologist in San Francisco, California
Dr. Jahan practices in San Francisco, California.
Dr. Jahan's NPI, 1427007657, was assigned on May 6, 2006. Dr. Jahan graduated from George Washington University School of Medicine and Health Sciences in 1987. Dr. Jahan's California license number on file is G65337.
- NPI
- 1427007657NPI Registry (opens in a new tab)
- NPI enumeration date
- May 6, 2006
- NPI status
- Active
- Practice phone
- (415) 353-9888
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Thierry M. Jahan's practice address is in San Francisco, California
Dr. Jahan's practice address in the NPI Registry is 505 Parnassus Ave, San Francisco, CA 94131, in San Francisco County. The practice phone is (415) 353-9888.
- NPI Registry address505 Parnassus Ave, San Francisco, CA 94131 · San Francisco CountyPhone(415) 353-9888
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Thierry M. Jahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jahan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Jahan's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thierry M. Jahan is one of 415 medical oncologists in California
Medical oncology is Dr. Jahan's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Jahan has a license on file in California.
Specialties and state licenses
- Medical oncology, CaliforniaPrimary
Medical oncologists near Dr. Jahan
Counts of medical oncologists 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. Thierry M. Jahan billed Medicare for 174 services in 2020
CMS data shows 174 Medicare services from Dr. Jahan across 3 procedure codes in 2020. Medicare paid $14,011 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Jahan's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 4502020: 17461%
Dr. Jahan compared with the California median for medical oncologists, 2020
- Dr. Jahan
- California median
- Medicare services
- 174vs 49665% below
- Part D claims
- 62vs 14457% below
Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.
Dr. Jahan's most billed Medicare procedure codes, 2020
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. Jahan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Jahan and other medical oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thierry M. Jahan's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Jahan's median patient age at 78, with 33% women.
Dr. Jahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Thierry M. Jahan wrote 62 Medicare Part D claims in 2020
In 2020, Dr. Jahan wrote 62 Medicare Part D claims. They cover 3 drugs, with $479,493 in total drug cost. In 2019, CMS named 137 claims across 7 drugs.
Dr. Jahan's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 1372020: 6255%
Drugs named by CMS: 3 in 2020, 7 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Thierry M. Jahan has 55 publications on record
Dmand AI links 55 papers to Dr. Jahan, published from 2008 to 2021. 2012 was the busiest year, with 3. The most frequent topics are Lung Neoplasms, Carcinoma, Non-Small-Cell Lung and Antineoplastic Combined Chemotherapy Protocols. Dr. Jahan has published most often in Clin Cancer Res. Dr. Jahan's most frequent co-authors are David M. Jablons, MD, Sue Sun Yom, MD, PhD and Lyudmila A. Bazhenova, MD.
Dr. Jahan's papers by year, 2012 to 2021
Topics Dr. Jahan writes about most
- Lung Neoplasms
- Carcinoma, Non-Small-Cell Lung
- Antineoplastic Combined Chemotherapy Protocols
- Paclitaxel
- Cisplatin
- Adenocarcinoma
- Angiogenesis Inhibitors
- Carboplatin
Dr. Jahan's most frequent co-authors
- David M. Jablons, MD16 shared papers
- Sue Sun Yom, MD, PhD5 shared papers
- Lyudmila A. Bazhenova, MD4 shared papers
Recent publications by Dr. Jahan
See who Dr. Jahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Jahan works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thierry M. Jahan has worked on 5 clinical trials
Dmand AI links Dr. Jahan to 5 clinical trials. 1 is still active or recruiting. Conditions studied include Carcinoma, Non-Small-Cell Lung, Histiocytoma and Sarcoma. Eli Lilly and Company sponsors the most, 2. Open Payments lists research payments to Dr. Jahan that name 2 trials.
Conditions in Dr. Jahan's trials
- Carcinoma, Non-Small-Cell Lung
- Histiocytoma
- Sarcoma
- Small Cell Lung Carcinoma
- Solitary Fibrous Tumor, Pleural
Investigators on the most trials with Dr. Jahan
- Steven Nabil Attia, DO2 shared trials
- Warren A. Chow, MD2 shared trials
- Gina Z. D'Amato, MD2 shared trials
Recent clinical trials with Dr. Jahan
PTK787/ZK 222584 in Treating Patients With Unresectable Malignant Mesothelioma (opens in a new tab)
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Thierry M. Jahan received $123 in industry payments from 2018 to 2019
CMS Open Payments shows 2 general payments to Dr. Jahan from 2 drug and device companies from 2018 to 2019. Food and beverage make up the largest share, 91% of the total. Novartis Pharmaceuticals Corporation paid the most, $112. It also lists 3 research payments totaling $1,584 from 2016 to 2017, naming 2 clinical trials.
General payments to Dr. Jahan by program year, 2018 to 2019
General payments to Dr. Jahan by kind, 2018 to 2019
- Food and beverage$11291%
- Education$119%
Companies that paid Dr. Jahan the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thierry M. Jahan has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Jahan, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Jahan
- 2013
- CMS Stage 1 EHR
- 2009
- America's Top Doctors
- 2008
- America's Top Doctors for Cancer
- Undated
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Thierry M. Jahan graduated from George Washington University School of Medicine and Health Sciences
Dr. Jahan graduated from George Washington University School of Medicine and Health Sciences in 1987. Dr. Jahan is a member of ACP.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Thierry M. Jahan accepts plans from 3 insurance carriers
Dr. Jahan is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Regence Health Plans. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Jahan accepts, by number of carriers
- Medicare3
- PPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Thierry M. Jahan'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 |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Thierry M. Jahan
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. Thierry M. Jahan's NPI number?
Dr. Thierry M. Jahan's NPI number is 1427007657. It was assigned on May 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thierry M. Jahan?
Dr. Thierry M. Jahan is a medical oncologist in San Francisco, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Thierry M. Jahan practice?
Dr. Jahan practices at 505 Parnassus Ave, San Francisco, CA 94131.
What is Dr. Thierry M. Jahan's office phone number?
The practice phone on file for Dr. Jahan is (415) 353-9888.
What is Dr. Thierry M. Jahan's medical license number?
Dr. Jahan's California license number on file is G65337.
Does Dr. Thierry M. Jahan accept Medicare?
Yes. CMS data shows Dr. Jahan billed Medicare for 174 services in 2020.
What services does Dr. Thierry M. Jahan bill to Medicare?
In 2020, Dr. Jahan's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and hospital inpatient care (99233).
Where did Dr. Thierry M. Jahan go to medical school?
Dr. Jahan graduated from George Washington University School of Medicine and Health Sciences in 1987.
What drugs does Dr. Thierry M. Jahan prescribe most?
In 2020 Medicare Part D data, Dr. Jahan's most prescribed drugs by claims were Tagrisso, Gabapentin and Ondansetron HCl.
Has Dr. Thierry M. Jahan received payments from drug or device companies?
CMS Open Payments shows $123 in general payments to Dr. Jahan from 2 companies from 2018 to 2019. The largest total came from Novartis Pharmaceuticals Corporation.
Show 4 more questionsShow fewer questions
How long has Dr. Thierry M. Jahan been practicing?
Dr. Jahan graduated from medical school in 1987, 39 years ago.
Does Dr. Thierry M. Jahan do research?
Dmand AI links 55 publications to Dr. Jahan, published from 2008 to 2021. Dr. Jahan has worked on 5 clinical trials.
Who does Dr. Thierry M. Jahan publish with?
Dr. Jahan's most frequent co-authors are David M. Jablons, MD (16 shared papers), Sue Sun Yom, MD, PhD (5 shared papers) and Lyudmila A. Bazhenova, MD (4 shared papers).
What insurance does Dr. Thierry M. Jahan accept?
Dr. Jahan is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Regence Health Plans. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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