NPPES file of Aug 9, 2026

Mandi Liu, MD

Internal Medicine Physician · Philadelphia, PA

Mandi Liu, MD is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1619652633, issued on Jun 19, 2023. Check the license (Pennsylvania MT229111, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1619652633
Name
Mandi Liu
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MT229111 PA
Self-reported in NPPES; status is on the state search
Practice location
3401 N Broad St Ste 810, Philadelphia, PA 19140
Phone
(215) 707-4085
Enumerated
Jun 19, 2023
Record last updated
Jun 19, 2023
Fax
(215) 707-5978
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 3401 N Broad St Ste 810

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

  1. Stephen Dachert, MDInternal Medicine Physician1144712373
  2. Ted Frederic, DOInternal Medicine Physician1760167357
  3. Gabrielle Gillow, MDInternal Medicine Physician1508340993
  4. Amanda GravesInternal Medicine Physician1114854783
  5. Leah Holben, MDInternal Medicine Physician1851883946
  6. Samyuktha Manikandan, MDInternal Medicine Physician1891489167

Verify Mandi Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MT229111
    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 Pennsylvania license search

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86% fewer Medicare Part D claims than the average internal medicine physician in 2024

430 Medicare Part D claims for 70 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Mandi Liu430
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium50 claims
  2. Lisinopril29 claims
  3. Carvedilol27 claims
  4. Gabapentin17 claims
  5. Xarelto13 claims
  6. Amlodipine Besylate12 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.

Industry payments in 2024: $17.74

1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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. Mandi Liu$17.74
  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.

Mandi Liu among 7,300 internal medicine physician records in Pennsylvania

Mandi Liu, MD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 89% of them.

  • NPI issued2023 · 89% of these records are older, 7% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2023 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,855 internal medicine physician records list a practice address in Philadelphia

They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kathleen Coppola, MDPhiladelphia, PA 191401932197837
  2. Giuliana Defrancesch, MDPhila, PA 191401154307783
  3. Susan Gersh, MDPhiladelphia, PA 191401780672659
  4. Sharon Herring, MDPhiladelphia, PA 191401285600197
  5. Lawrence Kaplan, MDPhiladelphia, PA 191401225026198
  6. Karen Lin, MDPhiladelphia, PA 191401194713099
  7. Keith McNellis, MDPhiladelphia, PA 191401003804907
  8. Faria Mesgar, MDPhiladelphia, PA 191401104814268

Common questions

What is Mandi Liu, MD's NPI number?

Mandi Liu, MD's National Provider Identifier (NPI) is 1619652633, issued on Jun 19, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Mandi Liu, MD located?

The NPPES record lists a practice address at 3401 N Broad St Ste 810, Philadelphia, PA, 19140. Phone: (215) 707-4085. Providers update this record themselves, so call before visiting.

How can I verify Mandi Liu, MD's license?

NPPES lists Pennsylvania license number MT229111, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mandi Liu, MD prescribe under Medicare Part D?

In 2024, Mandi Liu, MD had 430 Medicare Part D claims for 70 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.