NPPES file of Aug 9, 2026

Greta Catherine Zimmerman, D.O.

Dermatology Physician · Columbia, SC

Greta Catherine Zimmerman, D.O. is a dermatology physician with a practice address in Columbia, South Carolina, and NPI 1811960404, issued on Feb 13, 2006. Check the license (South Carolina 0441, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811960404
Name
Greta Catherine Zimmerman
Credential
D.O.
Primary taxonomy
Dermatology Physician 207N00000X
License number
0441 SC
Self-reported in NPPES; status is on the state search
Practice location
3600 Forest Dr Ste 400, Columbia, SC 29204
Phone
(803) 779-7316
Enumerated
Feb 13, 2006
Record last updated
Mar 7, 2023
Fax
(803) 343-2538
Medicaid ID
T00503 SC
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3600 Forest Dr Ste 400

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Allison Cashman, M.D.Dermatology Physician1063433936
  2. Jim Chow, M.D.MOHS-Micrographic Surgery Physician1891768487
  3. Alfonso Gonzalez, M.D.Dermatopathology Physician1912971367
  4. Mavinder GuramDermatology Physician1235768797
  5. Seth Howell, MDDermatology Physician1225532369
  6. Asha James, M.D.Dermatology Physician1669445235

Verify Greta Catherine Zimmerman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 0441
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

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88% fewer Medicare Part D claims than the average dermatology physician in 2024

92 Medicare Part D claims for 48 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.

  1. Greta Zimmerman92
  2. Specialty average797

Most prescribed

  1. Clobetasol Propionate19 claims
  2. Ketoconazole13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 98.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%96.6
  3. Promoting interoperabilityout of 100 · 25%97.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Dermatology Physician providers in South Carolina

There are 217 dermatology physician records in South Carolina.

Other dermatology physician records in South Carolina

  1. Caroline Aguilar, MDMount Pleasant, SC1518548007
  2. Nicole Amrhein, MDMount Pleasant, SC1295351120
  3. Laura Andrews-Lee, MDCharleston, SC1194466433
  4. Alan Anthony, MDRock Hill, SC1114003415
  5. Diana Antonovich, MDCharleston, SC1427093657
  6. Victoria AsmusGreenville, SC1063047033
  7. Eric Baker, M.D., P.A.Greenville, SC1760576383
  8. Mariah Barrett, PA-CAiken, SC1891421079
  9. Benjamin Barrick, DOGreenville, SC1659718427
  10. Cassandra Beard, D.O.Okatie, SC1508304833

Common questions

What is Greta Catherine Zimmerman, D.O.'s NPI number?

Greta Catherine Zimmerman, D.O.'s National Provider Identifier (NPI) is 1811960404, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Greta Catherine Zimmerman, D.O. located?

The NPPES record lists a practice address at 3600 Forest Dr Ste 400, Columbia, SC, 29204. Phone: (803) 779-7316. Providers update this record themselves, so call before visiting.

How can I verify Greta Catherine Zimmerman, D.O.'s license?

NPPES lists South Carolina license number 0441, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Greta Catherine Zimmerman, D.O. prescribe under Medicare Part D?

In 2024, Greta Catherine Zimmerman, D.O. had 92 Medicare Part D claims for 48 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Greta Catherine Zimmerman, D.O.'s MIPS final score?

The 2023 MIPS final score is 98.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.