Dr. Greta Catherine Zimmerman, DO
- Medicare services, 2023
- 6,507
- Part D claims, 2024
- 92
- Industry payments
- $1,203
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 874 American Pacific Dr, Henderson, NV 89014-8800
- Practice phone
- Call (702) 777-4809
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Touro University
Multi-specialty group site · Henderson, Nevada
Find Dr. Zimmerman's professional email, personal email and mobile number
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Dr. Greta Catherine Zimmerman is a dermatologist in Henderson, Nevada
Dr. Zimmerman practices at Touro University in Henderson, Nevada.
Dr. Zimmerman's NPI, 1811960404, was assigned on February 13, 2006. Dr. Zimmerman graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1984. Dr. Zimmerman holds South Carolina license 0441.
- NPI
- 1811960404NPI Registry (opens in a new tab)
- NPI enumeration date
- February 13, 2006
- NPI status
- Active
- Practice phone
- (702) 777-4809
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Greta Catherine Zimmerman practices at Touro University in Henderson, Nevada
Dr. Zimmerman's primary practice is Touro University, at 874 American Pacific Dr, Henderson, NV 89014-8800. The practice phone is (702) 777-4809.
- Touro University874 American Pacific Dr, Henderson, NV 89014-8800Phone(702) 777-4809
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Greta Catherine Zimmerman is affiliated with 2 sites of care and 2 medical groups
Dr. Zimmerman's primary practice is Touro University in Henderson, Nevada. The medical group on file is Health Center at Touro University Nevada. Dmand AI also links Dr. Zimmerman to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Greta Catherine Zimmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Touro University | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Greta Catherine Zimmerman is one of 90 dermatologists in Nevada
Dermatology is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Zimmerman is licensed in South Carolina.
Specialties and state licenses
- Dermatology, South CarolinaPrimary
Dermatologists near Dr. Zimmerman
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. Greta Catherine Zimmerman billed Medicare for 6,507 services in 2023
CMS data shows 6,507 Medicare services from Dr. Zimmerman across 18 procedure codes in 2023. Medicare paid $194,744 for them. Every service was in an office.
Dr. Zimmerman's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Surgery
- 2022: 8,4312023: 4,72544%
- Office and hospital visits
- 2022: 2,9892023: 1,78240%
Dr. Zimmerman compared with the Nevada median for dermatologists, 2023
- Dr. Zimmerman
- Nevada median
- Medicare services
- 6,507vs 3,2172.0 times
- Part D claims
- 32vs 40292% below
Medians across 87 dermatologists in Nevada with Dmand AI profiles that report each measure.
Dr. Zimmerman's most billed Medicare procedure codes, 2023
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. Zimmerman and other dermatologists in Nevada.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Greta Catherine Zimmerman's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Zimmerman's median patient age at 74, with 60% women.
Dr. Zimmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women60%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. Greta Catherine Zimmerman wrote 92 Medicare Part D claims in 2024
In 2024, Dr. Zimmerman wrote 92 Medicare Part D claims for 48 patients. 91% of them were for generic drugs. CMS names the drug for 32 of them, across 2 drugs with 11 or more claims each, at $794 in total drug cost. In 2023, CMS named 599 claims across 18 drugs.
Dr. Zimmerman's Part D claims by kind of drug, 2024
- Generic84 claims91%
- Brand-name and other8 claims9%
Dr. Zimmerman'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. Zimmerman's Part D claims, 2024
- Antibiotics18%17 of 92 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: 5992024: 3295%
Drugs named by CMS: 2 in 2024, 18 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
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Dr. Greta Catherine Zimmerman received $1,203 in industry payments from 2016 to 2023
CMS Open Payments shows 66 general payments to Dr. Zimmerman from 13 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 81% of the total. Janssen Pharmaceuticals, Inc paid the most, $468.
General payments to Dr. Zimmerman by program year, 2016 to 2023
General payments to Dr. Zimmerman by kind, 2016 to 2023
- Food and beverage$97281%
- Education$23119%
Companies that paid Dr. Zimmerman 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. Greta Catherine Zimmerman graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville
Dr. Zimmerman graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Greta Catherine Zimmerman'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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)Medicare Part D Prescribers - by Provider (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. Greta Catherine Zimmerman
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. Greta Catherine Zimmerman's NPI number?
Dr. Greta Catherine Zimmerman's NPI number is 1811960404. It was assigned on February 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Greta Catherine Zimmerman?
Dr. Greta Catherine Zimmerman is a dermatologist in Henderson, Nevada. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Greta Catherine Zimmerman practice?
Dr. Zimmerman practices at 874 American Pacific Dr, Henderson, NV 89014-8800. Dr. Zimmerman's primary practice is Touro University in Henderson, Nevada. Dmand AI also links Dr. Zimmerman to 1 group practice or clinic and 1 medical group.
What is Dr. Greta Catherine Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (702) 777-4809.
What is Dr. Greta Catherine Zimmerman's medical license number?
Dr. Zimmerman holds South Carolina license 0441.
What medical group is Dr. Greta Catherine Zimmerman part of?
Dr. Zimmerman is linked to Health Center at Touro University Nevada. Dmand AI links Dr. Zimmerman to 1 more medical group.
Does Dr. Greta Catherine Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 6,507 services in 2023.
What services does Dr. Greta Catherine Zimmerman bill to Medicare?
In 2023, Dr. Zimmerman's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
Where did Dr. Greta Catherine Zimmerman go to medical school?
Dr. Zimmerman graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1984.
What drugs does Dr. Greta Catherine Zimmerman prescribe most?
In 2024 Medicare Part D data, Dr. Zimmerman's most prescribed drugs by claims were Clobetasol Propionate and Ketoconazole.
Has Dr. Greta Catherine Zimmerman received payments from drug or device companies?
CMS Open Payments shows $1,203 in general payments to Dr. Zimmerman from 13 companies from 2016 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Greta Catherine Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 1984, 42 years ago.
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