Administration, OralAgammaglobulinaemia Tyrosine KinasePlatelet Count
Dr. Terry B. Gernsheimer, MD
NPI1639255441
- Medicare services, 2021
- 72
- Part D claims, 2021
- 30
- Publications
- 41
- Industry payments
- $296,447
- State license
- 1
- Practice address
- 101 N Main St, Coupeville, WA 98239
- Practice phone
- Call (206) 288-1012
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Gernsheimer's professional email, personal email and mobile number
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Dr. Terry B. Gernsheimer is a hematology (internal medicine) physician in Coupeville, Washington
Dr. Gernsheimer practices in Coupeville, Washington.
Dr. Gernsheimer's NPI, 1639255441, was assigned on October 27, 2006. Dr. Gernsheimer graduated from State University of New York at Stony Brook, School of Medicine in 1979. Dr. Gernsheimer holds Washington license MD00020446.
NPI and contact details
- NPI
- 1639255441NPI Registry (opens in a new tab)
- NPI enumeration date
- October 27, 2006
- NPI status
- Active
- Practice phone
- (206) 288-1012
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Terry B. Gernsheimer's practice address is in Coupeville, Washington
Dr. Gernsheimer's practice address in the NPI Registry is 101 N Main St, Coupeville, WA 98239, in Island County. The practice phone is (206) 288-1012.
- NPI Registry address101 N Main St, Coupeville, WA 98239 · Island CountyPhone(206) 288-1012
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Terry B. Gernsheimer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gernsheimer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Gernsheimer's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Terry B. Gernsheimer is one of 28 hematology (internal medicine) physicians in Washington
Internal medicine is Dr. Gernsheimer's primary specialty in the NPI Registry, under taxonomy code 207RH0000X. The record also lists hematology. Dr. Gernsheimer is licensed in Washington.
Specialties and state licenses
- Hematology (internal medicine), WashingtonPrimary
Hematology (internal medicine) physicians near Dr. Gernsheimer
Counts of hematology (internal medicine) physicians 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. Terry B. Gernsheimer billed Medicare for 72 services in 2021
CMS data shows 72 Medicare services from Dr. Gernsheimer across 2 procedure codes in 2021. Medicare paid $5,202 for them.
Medicare services, 202172
Paid by Medicare$5,202
Procedure codes2
Dr. Gernsheimer's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 652021: 599%
- Lab and pathology
- 2020: 152021: 1313%
Where Dr. Gernsheimer's Medicare services took place, 2021
- In an office5982%
- In a facility1318%
Dr. Gernsheimer compared with the Washington median for hematology (internal medicine) physicians, 2021
- Dr. Gernsheimer
- Washington median
- Medicare services
- 72vs 13647% below
- Part D claims
- 30vs 6352% below
Medians across 25 hematology (internal medicine) physicians in Washington with Dmand AI profiles that report each measure.
Dr. Gernsheimer's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gernsheimer and other hematology (internal medicine) physicians in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Terry B. Gernsheimer's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Gernsheimer's median patient age at 78, with 0% women.
Dr. Gernsheimer'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
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Terry B. Gernsheimer wrote 30 Medicare Part D claims in 2021
In 2021, Dr. Gernsheimer wrote 30 Medicare Part D claims. They cover 1 drug, with $230,322 in total drug cost. In 2020, CMS named 60 claims across 3 drugs.
Part D claims, 202130
Drugs named by CMS1
Total drug cost$230,322
Dr. Gernsheimer's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 602021: 3050%
Drugs named by CMS: 1 in 2021, 3 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Terry B. Gernsheimer has 41 publications on record
Dmand AI links 41 papers to Dr. Gernsheimer, published from 2016 to 2025. 2019 was the busiest year, with 5. The most frequent topics are Platelet Count, Purpura, Thrombocytopenic, Idiopathic and Thrombocytopenia. Dr. Gernsheimer has published most often in Blood. Dr. Gernsheimer's most frequent co-authors are David John Kuter, MD, Debbie C. Jiang, MD and James B. Bussel, MD.
Papers41
Years published2016 to 2025
Dr. Gernsheimer's papers by year, 2016 to 2025
Topics Dr. Gernsheimer writes about most
- Platelet Count
- Purpura, Thrombocytopenic, Idiopathic
- Thrombocytopenia
- Platelet Transfusion
- Blood Platelets
- COVID-19
- Hemorrhage
- COVID-19 Vaccines
Dr. Gernsheimer's most frequent co-authors
- David John Kuter, MD7 shared papers
- Debbie C. Jiang, MD5 shared papers
- James B. Bussel, MD4 shared papers
Recent publications by Dr. Gernsheimer
AnemiaErythrocyte TransfusionMyoglobin
Health PersonnelHemorrhageInduction Chemotherapy
See who Dr. Gernsheimer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gernsheimer works with, so you can find a warm path to the right hematology (internal medicine) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Terry B. Gernsheimer received $296,447 in industry payments from 2016 to 2025
CMS Open Payments shows 138 general payments to Dr. Gernsheimer from 13 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 63% of the total. Amgen Inc. paid the most, $155,988. It also lists 8 research payments totaling $78,409 from 2021 to 2022.
General payments to Dr. Gernsheimer by program year, 2016 to 2025
General payments to Dr. Gernsheimer by kind, 2016 to 2025
$296.4Kin total
- Consulting fees$188,14563%
- Travel and lodging$80,07727%
- Speaker and faculty fees$24,7198%
- Food and beverage$3,3511%
- Education$1560%
Companies that paid Dr. Gernsheimer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Terry B. Gernsheimer graduated from State University of New York at Stony Brook, School of Medicine
Dr. Gernsheimer graduated from State University of New York at Stony Brook, School of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Terry B. Gernsheimer'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 |
| 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. Terry B. Gernsheimer
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. Terry B. Gernsheimer's NPI number?
Dr. Terry B. Gernsheimer's NPI number is 1639255441. It was assigned on October 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Terry B. Gernsheimer?
Dr. Terry B. Gernsheimer is a hematology (internal medicine) physician in Coupeville, Washington. The primary specialty in the NPI Registry is Hematology (Internal Medicine) Physician (taxonomy code 207RH0000X).
Where does Dr. Terry B. Gernsheimer practice?
Dr. Gernsheimer practices at 101 N Main St, Coupeville, WA 98239.
What is Dr. Terry B. Gernsheimer's office phone number?
The practice phone on file for Dr. Gernsheimer is (206) 288-1012.
What is Dr. Terry B. Gernsheimer's medical license number?
Dr. Gernsheimer holds Washington license MD00020446.
Does Dr. Terry B. Gernsheimer accept Medicare?
Yes. CMS data shows Dr. Gernsheimer billed Medicare for 72 services in 2021.
What services does Dr. Terry B. Gernsheimer bill to Medicare?
In 2021, Dr. Gernsheimer's most billed Medicare services were office visit, established patient (99214) and lab and pathology test (86078).
Where did Dr. Terry B. Gernsheimer go to medical school?
Dr. Gernsheimer graduated from State University of New York at Stony Brook, School of Medicine in 1979.
What drugs does Dr. Terry B. Gernsheimer prescribe most?
In 2021 Medicare Part D data, Dr. Gernsheimer's most prescribed drugs by claims were Promacta.
Has Dr. Terry B. Gernsheimer received payments from drug or device companies?
CMS Open Payments shows $296,447 in general payments to Dr. Gernsheimer from 13 companies from 2016 to 2025. The largest total came from Amgen Inc.
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How long has Dr. Terry B. Gernsheimer been practicing?
Dr. Gernsheimer graduated from medical school in 1979, 47 years ago.
Does Dr. Terry B. Gernsheimer do research?
Dmand AI links 41 publications to Dr. Gernsheimer, published from 2016 to 2025.
Who does Dr. Terry B. Gernsheimer publish with?
Dr. Gernsheimer's most frequent co-authors are David John Kuter, MD (7 shared papers), Debbie C. Jiang, MD (5 shared papers) and James B. Bussel, MD (4 shared papers).
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