Dr. Gregory Ganzer, DO
- Medicare services, 2024
- 25
- Medicare patients, 2024
- 48
- Part D claims, 2024
- 1,386
- Hospital affiliations
- 1
- Industry payments
- $1,481
- Practice address
- 2101 Chapline St, Wheeling, WV 26003-3875
- Practice phone
- Call (304) 233-3240
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ohio Valley Dermatology
Dermatology practice · Wheeling, West Virginia
Find Dr. Ganzer'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. Gregory Ganzer is a dermatologist in Wheeling, West Virginia
Dr. Ganzer practices at Ohio Valley Dermatology in Wheeling, West Virginia.
Dr. Ganzer's NPI, 1326163890, was assigned on March 21, 2007. Dr. Ganzer graduated from Philadelphia College of Osteopathic Medicine in 1987. Dr. Ganzer holds West Virginia license 1159.
- NPI
- 1326163890NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052484532
- NPI enumeration date
- March 21, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (304) 233-3240
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Ganzer practices at Ohio Valley Dermatology in Wheeling, West Virginia
Dr. Ganzer's primary practice is Ohio Valley Dermatology, at 2101 Chapline St, Wheeling, WV 26003-3875. The practice phone is (304) 233-3240.
- Ohio Valley Dermatology2101 Chapline St, Wheeling, WV 26003-3875Phone(304) 233-3240
Source: Dmand AI Affiliation Data
Dr. Gregory Ganzer is affiliated with 2 sites of care and 1 medical group
Dr. Ganzer's primary practice is Ohio Valley Dermatology in Wheeling, West Virginia. Dr. Ganzer is also affiliated with WVU Medicine Wheeling Hospital. The medical group on file is Ohio Valley Dermatology.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory Ganzer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ganzer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ohio Valley Dermatology | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Ganzer is one of 44 dermatologists in West Virginia
Dermatology is Dr. Ganzer's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dmand AI has Dr. Ganzer's licenses on file in 3 states: West Virginia, Ohio and Pennsylvania.
Specialties and state licenses
- Dermatology, West VirginiaPrimary
- Ohio license
- Pennsylvania license
Dermatologists near Dr. Ganzer
Counts of dermatologists 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. Gregory Ganzer billed Medicare for 25 services in 2024
CMS data shows 25 Medicare services from Dr. Ganzer across 2 procedure codes in 2024, for 48 Medicare patients. Medicare paid $1,805 for them. Every service was in an office.
Dr. Ganzer's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Surgery
- 2022: 1912024: 1493%
- Office and hospital visits
- 2022: 662024: 1183%
Dr. Ganzer compared with the West Virginia median for dermatologists, 2024
- Dr. Ganzer
- West Virginia median
- Medicare services
- 25vs 1,17498% below
- Medicare patients
- 48vs 48390% below
- Part D claims
- 1,291vs 3783.4 times
Medians across 46 dermatologists in West Virginia with Dmand AI profiles that report each measure.
Dr. Ganzer's most billed Medicare procedure codes, 2024
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. Ganzer and other dermatologists in West Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Ganzer treated 48 Medicare patients in 2024, average age 70
CMS counts 48 Medicare patients who saw Dr. Ganzer in 2024. The largest group is 65 to 74, with 26 patients. 75% of them have high blood pressure, and 67% have high cholesterol. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ganzer's median patient age at 69, with 53% women.
Dr. Ganzer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ganzer's Medicare patients by sex, 2024
- Women2246%
- Men2654%
Chronic conditions among Dr. Ganzer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol67%
- Arthritis50%
- Diabetes44%
- Mood disorders29%
- Anxiety27%
- Depression27%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ganzer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women53%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Ganzer wrote 1,386 Medicare Part D claims in 2024
In 2024, Dr. Ganzer wrote 1,386 Medicare Part D claims for 399 patients. 89% of them were for generic drugs. CMS names the drug for 1,291 of them, across 27 drugs with 11 or more claims each, at $457,824 in total drug cost. In 2023, CMS named 1,147 claims across 25 drugs.
Dr. Ganzer's Part D claims by kind of drug, 2024
- Generic1,240 claims89%
- Brand-name146 claims11%
Dr. Ganzer'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. Ganzer's Part D claims, 2024
- Antibiotics16%215 of 1,386 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1472024: 1,29113%
Drugs named by CMS: 27 in 2024, 25 in 2023.
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. Gregory Ganzer ranks in the 80th percentile for removal of skin lesions in Medicare
Dr. Ganzer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 214 procedures of removal of skin lesions by Dr. Ganzer, more than 80% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Ganzer ranks in Medicare procedure volume
- Removal of skin lesions
- 80th percentile214 procedures
- Removal or shaving of skin growth
- 79th percentile52 procedures
- Skin biopsy
- 66th percentile33 procedures
- Melanoma (skin cancer) excision
- 69th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gregory Ganzer received $1,481 in industry payments from 2016 to 2025
CMS Open Payments shows 67 general payments to Dr. Ganzer from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Celgene Corporation paid the most, $763. It also lists 1 research payment totaling $39 in 2017.
General payments to Dr. Ganzer by program year, 2016 to 2025
General payments to Dr. Ganzer by kind, 2016 to 2025
- Food and beverage$1,40395%
- Education$785%
Companies that paid Dr. Ganzer 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. Gregory Ganzer graduated from Philadelphia College of Osteopathic Medicine
Dr. Ganzer graduated from Philadelphia College of Osteopathic Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Ganzer'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (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 |
| 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. Gregory Ganzer
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. Gregory Ganzer's NPI number?
Dr. Gregory Ganzer's NPI number is 1326163890. It was assigned on March 21, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Ganzer?
Dr. Gregory Ganzer is a dermatologist in Wheeling, West Virginia. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Gregory Ganzer practice?
Dr. Ganzer practices at 2101 Chapline St, Wheeling, WV 26003-3875. Dr. Ganzer's primary practice is Ohio Valley Dermatology in Wheeling, West Virginia.
What is Dr. Gregory Ganzer's office phone number?
The practice phone on file for Dr. Ganzer is (304) 233-3240.
What is Dr. Gregory Ganzer's medical license number?
Dr. Ganzer holds West Virginia license 1159, one of the licenses on file in 3 states.
Which states has Dr. Gregory Ganzer been licensed in?
Dmand AI has state licenses on file for Dr. Ganzer in West Virginia, Ohio and Pennsylvania.
Which hospitals is Dr. Gregory Ganzer affiliated with?
Dr. Ganzer is affiliated with WVU Medicine Wheeling Hospital.
What medical group is Dr. Gregory Ganzer part of?
Dr. Ganzer is linked to Ohio Valley Dermatology.
Does Dr. Gregory Ganzer accept Medicare?
Yes. CMS data shows Dr. Ganzer billed Medicare for 25 services in 2024, and Dr. Ganzer accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Ganzer see?
CMS counts 48 Medicare patients who saw Dr. Ganzer in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Dr. Gregory Ganzer bill to Medicare?
In 2024, Dr. Ganzer's most billed Medicare services were surgery: skin and soft tissue (17110) and office visit, established patient (99213).
Where did Dr. Gregory Ganzer go to medical school?
Dr. Ganzer graduated from Philadelphia College of Osteopathic Medicine in 1987.
What drugs does Dr. Gregory Ganzer prescribe most?
In 2024 Medicare Part D data, Dr. Ganzer's most prescribed drugs by claims were Triamcinolone Acetonide, Ketoconazole and Mupirocin.
Has Dr. Gregory Ganzer received payments from drug or device companies?
CMS Open Payments shows $1,481 in general payments to Dr. Ganzer from 16 companies from 2016 to 2025. The largest total came from Celgene Corporation.
How long has Dr. Gregory Ganzer been practicing?
Dr. Ganzer graduated from medical school in 1987, 39 years ago.
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