Registry data as of Aug 27, 2026

Woojin Han

Internal Medicine Physician · Columbia, SC

Woojin Han is an internal medicine physician with a practice address in Columbia, South Carolina, and NPI 1790340511, issued on May 7, 2019. Check the license (South Carolina 90048, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1790340511
Name
Woojin Han
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
90048 SC
Self-reported in NPPES; status is on the state search
Practice location
1301 Taylor St Ste 8A, Columbia, SC 29201
Phone
(803) 929-2955
Enumerated
May 7, 2019
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 1301 Taylor St Ste 8A

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

  1. Gwendolyn Bowers, D.O.Internal Medicine Physician1306026554
  2. Robert Brown, MDInternal Medicine Physician1316960040
  3. Zachariah Dorsch, LPCProfessional Counselor1649720764
  4. Laura Hamilton, M.D.Internal Medicine Physician1033390661
  5. Shakilya Khalif, FNP-BCFamily Nurse Practitioner1013335884
  6. Kayla Lafaver, DOInternal Medicine Physician1598256307

Verify Woojin Han 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 90048
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

13% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,433 Medicare Part D claims for 285 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 101 claims were for opioids.

  1. Woojin Han2,433
  2. Specialty average2,785

Most prescribed

  1. Amlodipine Besylate102 claims
  2. Losartan Potassium88 claims
  3. Atorvastatin Calcium79 claims
  4. Rosuvastatin Calcium77 claims
  5. Levothyroxine Sodium63 claims
  6. Furosemide59 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 Medicare quality score for 2023: 99.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score90.6
  2. Costout of 100 · 30%
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $747.59

25 payments, mostly food and beverage; the largest payer was GlaxoSmithKline, LLC.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Woojin Han$747.59
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

2 hospital and facility affiliations

  1. Privia Medical Group OF Georgia LLCThomasville, GA
  2. Select Rehabilitation, LLCGlenview, IL

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

359 internal medicine physician records list a Columbia practice address

They are 359 of the 11,200 NPPES records with a Columbia practice address, and 2,276 internal medicine physician records in South Carolina.

Other internal medicine physician records in South Carolina

  1. John Abbott, M.D.Sumter, SC1093830762
  2. Murad Abdelsalam, MDRock Hill, SC1013229756
  3. Mohammed Abdulfatah, MDOrangeburg, SC1285167023
  4. Amjad Abdulrahman, MDIrmo, SC1194718841
  5. Elizabeth Abell, MDSpartanburg, SC1083623805
  6. Alvin Abinsay, M.D.Marion, SC1689608002
  7. Izabela Abissi, DOCharleston, SC1376387803
  8. Tinu Abraham, MDGreenwood, SC1194354399
  9. Natallia Abramovich, MDSeneca, SC1568647949
  10. Mohammad Abudalou, MDColumbia, SC1164084653

Common questions

What is Woojin Han's NPI number?

Woojin Han's National Provider Identifier (NPI) is 1790340511, issued on May 7, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Woojin Han located?

The NPPES record lists a practice address at 1301 Taylor St Ste 8A, Columbia, SC, 29201. Phone: (803) 929-2955. Providers update this record themselves, so call before visiting.

How can I verify Woojin Han's license?

NPPES lists South Carolina license number 90048, 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 Woojin Han prescribe under Medicare Part D?

In 2024, Woojin Han had 2,433 Medicare Part D claims for 285 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

What is Woojin Han's Medicare quality score?

The 2023 MIPS final score is 99.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.