Graft vs Host DiseaseHematopoietic Stem Cell TransplantationLeukemia, Prolymphocytic, T-Cell
Dr. James Leonard Gajewski, MD
NPI1356349112
- Medicare services, 2016
- 187
- Part D claims, 2017
- 21
- Publications
- 138
- Clinical trials
- 1
- Hospital affiliations
- 1
- Practice address
- 9040A Jackson Ave, Joint Base Lewis Mcchord, WA 98431
- Practice phone
- Call (253) 968-1110
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gajewski'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. James Leonard Gajewski is a hematologist and oncologist in Tacoma, Washington
Dr. Gajewski practices at Madigan Army Medical Center in Joint Base Lewis Mcchord, Washington, part of United States Department of War.
Dr. Gajewski's NPI, 1356349112, was assigned on July 14, 2005. Dr. Gajewski graduated from Lewis Katz School of Medicine in 1983. Dr. Gajewski holds Colorado license DR.0071741.
NPI and contact details
- NPI
- 1356349112NPI Registry (opens in a new tab)
- NPI enumeration date
- July 14, 2005
- NPI status
- Active
- Practice phone
- (253) 968-1110
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. James Leonard Gajewski practices in Joint Base Lewis Mcchord and Tacoma
Dr. Gajewski's primary practice is Madigan Army Medical Center, at 9040A Jackson Ave, Joint Base Lewis Mcchord, WA 98431 in Pierce County. The practice phone is (253) 968-1110. Dr. Gajewski also practices at Madigan Army Medical Center, 9040 Jackson Ave, Tacoma, WA 98431.
- Madigan Army Medical CenterPrimary9040A Jackson Ave, Joint Base Lewis Mcchord, WA 98431 · Pierce CountyPhone(253) 968-1110
- Madigan Army Medical Center9040 Jackson Ave, Tacoma, WA 98431 · Pierce CountyPhone(253) 968-1110
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. James Leonard Gajewski is affiliated with 3 sites of care
Dr. Gajewski's primary practice is Madigan Army Medical Center in Joint Base Lewis Mcchord, Washington, part of United States Department of War. Dmand AI also links Dr. Gajewski to 1 breast imaging center and 1 government or correctional health site, each named with a free account.
1 breast imaging centerName with a free account1 government or correctional health siteName with a free account
See all 3 affiliations for Dr. GajewskiSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James Leonard Gajewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gajewski practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Madigan Army Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Leonard Gajewski is one of 348 hematologists and oncologists in Washington
Hematology and oncology is Dr. Gajewski's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Gajewski is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Gajewski's licenses on file in 10 states: Colorado, New York, Washington, California, Oregon, Texas, Arizona, District of Columbia, Pennsylvania and Ohio.
Specialties and state licenses
- Hematology and oncology, ColoradoPrimary
- New York license
- Washington license
- California license
- Oregon license
- Texas license
- Arizona license
- District of Columbia license
- Pennsylvania license
- Ohio license
Hematologists and oncologists near Dr. Gajewski
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
348hematologists and oncologists in Washington37hematologists and oncologists in Tacoma3hematologists and oncologists at Madigan Army Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James Leonard Gajewski billed Medicare for 187 services in 2016
CMS data shows 187 Medicare services from Dr. Gajewski across 3 procedure codes in 2016. Medicare paid $14,997 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2016187
Paid by Medicare$14,997
Procedure codes3
Dr. Gajewski compared with the Washington median for hematologists and oncologists, 2016
- Dr. Gajewski
- Washington median
- Medicare services
- 187vs 58568% below
- Part D claims
- 21vs 28393% below
Medians across 310 hematologists and oncologists in Washington with Dmand AI profiles that report each measure.
Dr. Gajewski's most billed Medicare procedure codes, 2016
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. Gajewski?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gajewski and other hematologists and oncologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Leonard Gajewski's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Gajewski's median patient age at 75, with 53% women.
Dr. Gajewski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women53%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. James Leonard Gajewski wrote 21 Medicare Part D claims in 2017
In 2017, Dr. Gajewski wrote 21 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $136 in total drug cost. In 2016, CMS named 195 claims across 9 drugs.
Part D claims, 201721
Drugs named by CMS1
Total drug cost$136
Dr. Gajewski's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 1952017: 2189%
Drugs named by CMS: 1 in 2017, 9 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. James Leonard Gajewski has 138 publications on record
Dmand AI links 138 papers to Dr. Gajewski, published from 2001 to 2022. 2014 was the busiest year, with 9. The most frequent topics are Hematopoietic Stem Cell Transplantation, Graft vs Host Disease and Transplantation, Homologous. Dr. Gajewski has published most often in Biol Blood Marrow Transplant. Dr. Gajewski's most frequent co-authors are Richard E. Champlin, MD, Sergio A. Giralt, MD and Issa F. Khouri, MD.
Papers138
Years published2001 to 2022
Dr. Gajewski's papers by year, 2011 to 2022
Topics Dr. Gajewski writes about most
- Hematopoietic Stem Cell Transplantation
- Graft vs Host Disease
- Transplantation, Homologous
- Bone Marrow Transplantation
- Transplantation Conditioning
- Antineoplastic Combined Chemotherapy Protocols
- Myelodysplastic Syndromes
- Cyclophosphamide
Dr. Gajewski's most frequent co-authors
- Richard E. Champlin, MD72 shared papers
- Sergio A. Giralt, MD51 shared papers
- Issa F. Khouri, MD43 shared papers
Recent publications by Dr. Gajewski
Biol Blood Marrow Transplant
Hematopoietic Stem Cell TransplantationTransplantation ConditioningTransplantation, Homologous
See who Dr. Gajewski researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gajewski works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James Leonard Gajewski has worked on 1 clinical trial
Dmand AI links Dr. Gajewski to 1 clinical trial.
Recent clinical trials with Dr. Gajewski
Phase I/II Trial rHuKFG for the Treatment of Steroid Refractory Gastrointestinal Acute GVHD (opens in a new tab)
TerminatedPhase 1/2
Recombinant Human Keratinocyte Growth Factor
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. James Leonard Gajewski received $862 in industry payments from 2016 to 2018
CMS Open Payments shows 14 general payments to Dr. Gajewski from 3 drug and device companies from 2016 to 2018. Travel and lodging make up the largest share, 84% of the total. Amgen Inc. paid the most, $438.
General payments to Dr. Gajewski by program year, 2016 to 2018
General payments to Dr. Gajewski by kind, 2016 to 2018
$862in total
- Travel and lodging$72584%
- Food and beverage$13716%
Companies that paid Dr. Gajewski the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Leonard Gajewski has 1 award and honors on record
Dmand AI lists 1 award for Dr. Gajewski, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Gajewski
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. James Leonard Gajewski graduated from Lewis Katz School of Medicine
Dr. Gajewski graduated from Lewis Katz School of Medicine in 1983. Dr. Gajewski is a member of ASCO.
- Medical school
- Board certified in hematology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. James Leonard Gajewski accepts plans from 1 insurance carrier
Dr. Gajewski is in network with 1 carrier, including Cigna. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Cigna
Plan types Dr. Gajewski accepts, by number of carriers
- HMO1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. James Leonard Gajewski'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 Affiliation DataDmand AI Practice 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 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. James Leonard Gajewski
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. James Leonard Gajewski's NPI number?
Dr. James Leonard Gajewski's NPI number is 1356349112. It was assigned on July 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. James Leonard Gajewski?
Dr. James Leonard Gajewski is a hematologist and oncologist in Tacoma, Washington. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. James Leonard Gajewski practice?
Dr. Gajewski practices at 9040A Jackson Ave, Joint Base Lewis Mcchord, WA 98431. Dr. Gajewski also practices at 9040 Jackson Ave, Tacoma, WA 98431. Dr. Gajewski's primary practice is Madigan Army Medical Center in Joint Base Lewis Mcchord, Washington, part of United States Department of War. Dmand AI also links Dr. Gajewski to 1 breast imaging center and 1 government or correctional health site.
What is Dr. James Leonard Gajewski's office phone number?
The practice phone on file for Dr. Gajewski is (253) 968-1110.
What is Dr. James Leonard Gajewski's medical license number?
Dr. Gajewski holds Colorado license DR.0071741, one of the licenses on file in 10 states.
Which states has Dr. James Leonard Gajewski been licensed in?
Dmand AI has state licenses on file for Dr. Gajewski in Colorado (2023 to 2027), New York (since 1986), Washington (2022 to 2027), California (1986 to 2026), Oregon (2007 to 2025), Texas (1993 to 2025), Arizona (2005 to 2010), District of Columbia (2005 to 2010), Pennsylvania (1986 to 2008) and Ohio (1985 to 1986).
Which hospitals is Dr. James Leonard Gajewski affiliated with?
Dr. Gajewski practices at Madigan Army Medical Center in Joint Base Lewis Mcchord, Washington.
Does Dr. James Leonard Gajewski accept Medicare?
Yes. CMS data shows Dr. Gajewski billed Medicare for 187 services in 2016.
Is Dr. James Leonard Gajewski board certified?
Yes. Dr. Gajewski is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. James Leonard Gajewski bill to Medicare?
In 2016, Dr. Gajewski's most billed Medicare services were hospital inpatient care (99233), office visit, established patient (99215) and office visit, established patient (99214).
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Where did Dr. James Leonard Gajewski go to medical school?
Dr. Gajewski graduated from Lewis Katz School of Medicine in 1983.
What drugs does Dr. James Leonard Gajewski prescribe most?
In 2017 Medicare Part D data, Dr. Gajewski's most prescribed drugs by claims were Montelukast Sodium.
Has Dr. James Leonard Gajewski received payments from drug or device companies?
CMS Open Payments shows $862 in general payments to Dr. Gajewski from 3 companies from 2016 to 2018. The largest total came from Amgen Inc.
How long has Dr. James Leonard Gajewski been practicing?
Dr. Gajewski graduated from medical school in 1983, 43 years ago.
Does Dr. James Leonard Gajewski do research?
Dmand AI links 138 publications to Dr. Gajewski, published from 2001 to 2022. Dr. Gajewski has worked on 1 clinical trial.
Who does Dr. James Leonard Gajewski publish with?
Dr. Gajewski's most frequent co-authors are Richard E. Champlin, MD (72 shared papers), Sergio A. Giralt, MD (51 shared papers) and Issa F. Khouri, MD (43 shared papers).
What insurance does Dr. James Leonard Gajewski accept?
Dr. Gajewski is in network with 1 carrier, including Cigna. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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