NPPES file of Aug 9, 2026

Huong T. Phan, MD

Internal Medicine Physician · Columbia, SC

Huong T. Phan, MD is an internal medicine physician with a practice address in Columbia, South Carolina, and NPI 1326059627, issued on Aug 11, 2006. Check the license (South Carolina 17413, 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
1326059627
Name
Huong T. Phan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
17413 SC
Self-reported in NPPES; status is on the state search
Practice location
4540 Trenholm RD, Columbia, SC 29206
Phone
(803) 790-4700
Enumerated
Aug 11, 2006
Record last updated
Nov 10, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(803) 790-6130
Medicaid ID
174135 SC
Medicare enrollment
Enrolled (PECOS I20050824000071); accepts Medicare assignment
Medical or professional school
University Of South Carolina School Of Medicine, 1992
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4540 Trenholm RD

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

  1. Erik Crook, M.D.Internal Medicine Physician1659449544
  2. Edgar Deschamps, MDInternal Medicine Physician1699734483
  3. Kellie Foster, NPNurse Practitioner1467257824
  4. Jennifer Gillis, NP-CPrimary Care Nurse Practitioner1407195688
  5. Krista Gressette, MDInternal Medicine Physician1720604838
  6. Edward Haselden, MDInternal Medicine Physician1306805197

Verify Huong T. Phan 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 17413
    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.

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61% more Medicare Part D claims than the average internal medicine physician in 2024

5,126 Medicare Part D claims for 412 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Huong Phan5,126
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium463 claims
  2. Rosuvastatin Calcium391 claims
  3. Levothyroxine Sodium332 claims
  4. Losartan Potassium307 claims
  5. Amlodipine Besylate289 claims
  6. Omeprazole165 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): 83 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 score80.5
  2. Costout of 100 · 30%72.2
  3. Promoting interoperabilityout of 100 · 25%89.0
  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).

Industry payments in 2024: $997.65

63 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Huong Phan$997.65
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Lexington Health IncColumbia, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Huong T. Phan among 1,881 internal medicine physician records in South Carolina

Huong T. Phan, MD is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 58% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1992 · median 2006 among the 1,119 with a school on file
  • Record last updated2020 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

269 internal medicine physician records list a practice address in Columbia

They are 269 of the 11,200 NPPES records with a practice address in Columbia, and 1,881 internal medicine physician records in South Carolina.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Erik Crook, M.D.Columbia, SC 292061659449544
  2. Edgar Deschamps, MDColumbia, SC 292061699734483
  3. Uday Doppalapudi, M.D.Columbia, SC 292061679599237
  4. Krista Gressette, MDColumbia, SC 292061720604838
  5. Edward Haselden, MDColumbia, SC 292061306805197
  6. Rosa Jimenez, MDColumbia, SC 292061912966714
  7. Ruben Mayer, MDColumbia, SC 292061891755039
  8. Mathew Mazzola, DOColumbia, SC 292061497275895

Common questions

What is Huong T. Phan, MD's NPI number?

Huong T. Phan, MD's National Provider Identifier (NPI) is 1326059627, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Huong T. Phan, MD located?

The NPPES record lists a practice address at 4540 Trenholm RD, Columbia, SC, 29206. Phone: (803) 790-4700. Providers update this record themselves, so call before visiting.

How can I verify Huong T. Phan, MD's license?

NPPES lists South Carolina license number 17413, 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 Huong T. Phan, MD prescribe under Medicare Part D?

In 2024, Huong T. Phan, MD had 5,126 Medicare Part D claims for 412 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Huong T. Phan, MD's MIPS final score?

The 2023 MIPS final score is 83 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.