Dr. Gregory Carl Zachmann, MD
- Medicare services, 2024
- 530
- Medicare patients, 2024
- 272
- Part D claims, 2024
- 363
- Hospital affiliations
- 2
- Industry payments
- $1,995
- Practice address
- 1102 South Jefferson Street, Roanoke, VA 24016
- Practice phone
- Call (540) 342-0707
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roanoke Ambulatory Surgery Center
Surgery Center - Medicare-Certified · Roanoke, Virginia
Find Dr. Zachmann'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 Carl Zachmann is an otolaryngologist in Roanoke, Virginia
Dr. Zachmann practices at Roanoke Ambulatory Surgery Center in Roanoke, Virginia.
Dr. Zachmann's NPI, 1295738094, was assigned on May 24, 2005. Dr. Zachmann graduated from University of Virginia School of Medicine in 1994. Dr. Zachmann holds Virginia license 0101053012.
- NPI
- 1295738094NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557258720
- NPI enumeration date
- May 24, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (540) 342-0707
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Carl Zachmann practices at Roanoke Ambulatory Surgery Center in Roanoke, Virginia
Dr. Zachmann's primary practice is Roanoke Ambulatory Surgery Center, at 1102 South Jefferson Street, Roanoke, VA 24016. The practice phone is (540) 342-0707.
- Roanoke Ambulatory Surgery Center1102 South Jefferson Street, Roanoke, VA 24016Phone(540) 342-0707
Source: Dmand AI Affiliation Data
Dr. Gregory Carl Zachmann is affiliated with 4 sites of care and 3 medical groups
Dr. Zachmann's primary practice is Roanoke Ambulatory Surgery Center in Roanoke, Virginia. Dr. Zachmann is also affiliated with Carilion Roanoke Memorial Hospital. The medical group on file is Carilion Clinic. Dmand AI also links Dr. Zachmann to 1 more hospital, 2 medical groups and 1 group practice or clinic, 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. Gregory Carl Zachmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zachmann practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roanoke Ambulatory Surgery Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Carl Zachmann is one of 260 otolaryngologists in Virginia
Otolaryngology is Dr. Zachmann's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Zachmann is licensed in Virginia.
Specialties and state licenses
- Otolaryngology, VirginiaPrimary
Otolaryngologists near Dr. Zachmann
Counts of otolaryngologists 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 Carl Zachmann billed Medicare for 530 services in 2024
CMS data shows 530 Medicare services from Dr. Zachmann across 8 procedure codes in 2024, for 272 Medicare patients. Medicare paid $23,720 for them. Every service was in an office.
Dr. Zachmann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5152024: 35232%
- Surgery
- 2023: 1132024: 17858%
Dr. Zachmann compared with the Virginia median for otolaryngologists, 2024
- Dr. Zachmann
- Virginia median
- Medicare services
- 530vs 73127% below
- Medicare patients
- 272vs 38229% below
- Part D claims
- 303vs 1462.1 times
Medians across 236 otolaryngologists in Virginia with Dmand AI profiles that report each measure.
Dr. Zachmann'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.
Need commercial claims for Dr. Zachmann?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zachmann and other otolaryngologists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Carl Zachmann treated 272 Medicare patients in 2024, average age 76
CMS counts 272 Medicare patients who saw Dr. Zachmann in 2024. The largest group is 65 to 74, with 112 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zachmann's median patient age at 71, with 56% women.
Dr. Zachmann's Medicare patients by age, 2024
Dr. Zachmann's Medicare patients by sex, 2024
- Women15557%
- Men11743%
Chronic conditions among Dr. Zachmann's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis50%
- Diabetes30%
- Anxiety28%
- Mood disorders25%
- Chronic kidney disease23%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zachmann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Carl Zachmann wrote 363 Medicare Part D claims in 2024
In 2024, Dr. Zachmann wrote 363 Medicare Part D claims for 152 patients. 99% of them were for generic drugs. CMS names the drug for 303 of them, across 13 drugs with 11 or more claims each, at $9,310 in total drug cost. In 2023, CMS named 491 claims across 13 drugs.
Dr. Zachmann's Part D claims by kind of drug, 2024
- Generic359 claims99%
- Brand-name and other4 claims1%
Dr. Zachmann'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. Zachmann's Part D claims, 2024
- Opioids4%14 of 363 claims
- Antibiotics13%47 of 363 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: 4912024: 30338%
Drugs named by CMS: 13 in 2024, 13 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
How Dr. Gregory Carl Zachmann takes part in Medicare
Dr. Zachmann 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. Gregory Carl Zachmann received $1,995 in industry payments from 2016 to 2023
CMS Open Payments shows 45 general payments to Dr. Zachmann from 14 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 70% of the total. Stryker Corporation paid the most, $1,267.
General payments to Dr. Zachmann by program year, 2016 to 2023
General payments to Dr. Zachmann by kind, 2016 to 2023
- Food and beverage$1,40270%
- Travel and lodging$59330%
Companies that paid Dr. Zachmann the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Carl Zachmann graduated from University of Virginia School of Medicine
Dr. Zachmann graduated from University of Virginia School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Carl Zachmann'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 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) |
| 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 Carl Zachmann
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 Carl Zachmann's NPI number?
Dr. Gregory Carl Zachmann's NPI number is 1295738094. It was assigned on May 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Carl Zachmann?
Dr. Gregory Carl Zachmann is an otolaryngologist in Roanoke, Virginia. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Gregory Carl Zachmann practice?
Dr. Zachmann practices at 1102 South Jefferson Street, Roanoke, VA 24016. Dr. Zachmann's primary practice is Roanoke Ambulatory Surgery Center in Roanoke, Virginia. Dmand AI also links Dr. Zachmann to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Dr. Gregory Carl Zachmann's office phone number?
The practice phone on file for Dr. Zachmann is (540) 342-0707.
What is Dr. Gregory Carl Zachmann's medical license number?
Dr. Zachmann holds Virginia license 0101053012.
Which hospitals is Dr. Gregory Carl Zachmann affiliated with?
Dr. Zachmann is affiliated with Carilion Roanoke Memorial Hospital. Dmand AI links Dr. Zachmann to 1 more hospital.
What medical group is Dr. Gregory Carl Zachmann part of?
Dr. Zachmann is linked to Carilion Clinic. Dmand AI links Dr. Zachmann to 2 more medical groups.
Does Dr. Gregory Carl Zachmann accept Medicare?
Yes. CMS data shows Dr. Zachmann billed Medicare for 530 services in 2024, and Dr. Zachmann accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Carl Zachmann see?
CMS counts 272 Medicare patients who saw Dr. Zachmann in 2024, with an average age of 76.
What services does Dr. Gregory Carl Zachmann bill to Medicare?
In 2024, Dr. Zachmann's most billed Medicare services were office visit, established patient (99213), surgery: ear (69210) and office visit, new patient (99203).
Show 4 more questionsShow fewer questions
Where did Dr. Gregory Carl Zachmann go to medical school?
Dr. Zachmann graduated from University of Virginia School of Medicine in 1994.
What drugs does Dr. Gregory Carl Zachmann prescribe most?
In 2024 Medicare Part D data, Dr. Zachmann's most prescribed drugs by claims were Levocetirizine Dihydrochloride, Fluticasone Propionate and Ipratropium Bromide.
Has Dr. Gregory Carl Zachmann received payments from drug or device companies?
CMS Open Payments shows $1,995 in general payments to Dr. Zachmann from 14 companies from 2016 to 2023. The largest total came from Stryker Corporation.
How long has Dr. Gregory Carl Zachmann been practicing?
Dr. Zachmann graduated from medical school in 1994, 32 years ago.
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