NPPES file of Aug 9, 2026

Ya-Yu Lee, MD

Endocrinology, Diabetes & Metabolism Physician · Allentown, PA

Ya-Yu Lee, MD is an endocrinology, diabetes & metabolism physician with a practice address in Allentown, Pennsylvania, and NPI 1235271545, issued on Feb 13, 2007. Check the license (Pennsylvania MD430220, 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
1235271545
Name
Ya-Yu Lee
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
MD430220 PA
Self-reported in NPPES; status is on the state search
Practice location
1243 S Cedar Crest Blvd, Allentown, PA 18103
Phone
(610) 402-6790
Enumerated
Feb 13, 2007
Record last updated
Nov 18, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070601000381); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1243 S Cedar Crest Blvd

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

  1. Shaeista Ali Khaku, OTR/LOccupational Therapist1598290421
  2. Laurie Baker, RDRegistered Dietitian1336566389
  3. Elliot BeadleRegistered Dietitian1306217609
  4. Kathryn Boardman, RDRegistered Dietitian1861766875
  5. Donna Boden, RDRegistered Dietitian1154507986
  6. Charles Bonos, M.D.Occupational Medicine Physician1992892921

Verify Ya-Yu Lee 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 MD430220
    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

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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3% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

2,555 Medicare Part D claims for 492 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Ya-Yu Lee2,555
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium523 claims
  2. Alendronate Sodium256 claims
  3. Synthroid144 claims
  4. Metformin Hcl138 claims
  5. Trulicity101 claims
  6. Ozempic96 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: $231.98

2 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ya-Yu Lee$231.98
  2. Specialty average$5,742.15

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

Bills Medicare through 2 group practices

  1. Keystone Rehabilitation Systems IncBirdsboro, PA
  2. Lehigh Valley Physician GroupAllentown, PA

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

Ya-Yu Lee among 485 endocrinology, diabetes & metabolism physician records in Pennsylvania

Ya-Yu Lee, MD is one of 485 endocrinology, diabetes & metabolism physician records with a practice address in Pennsylvania. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 45% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2001 · median 2004 among the 334 with a school on file
  • Record last updated2015 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Pennsylvania

There are 485 endocrinology, diabetes & metabolism physician records in Pennsylvania.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Aakif Ahmad, DOAllentown, PA 181031720308331
  2. Andrew Brackbill, M.D.Allentown, PA 181031447455209
  3. Robert Doll, M.D.Allentown, PA 181031043203375
  4. Mal Homan, MDAllentown, PA 181031215905898
  5. Sharmila Koshy, MDAllentown, PA 181031609037696
  6. Angela Magdaleno, D.O.Allentown, PA 181031720475189
  7. Robert McCauley, M.D.Allentown, PA 181031992920466
  8. Gretchen Perilli, MDAllentown, PA 181031043306343

Common questions

What is Ya-Yu Lee, MD's NPI number?

Ya-Yu Lee, MD's National Provider Identifier (NPI) is 1235271545, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ya-Yu Lee, MD located?

The NPPES record lists a practice address at 1243 S Cedar Crest Blvd, Allentown, PA, 18103. Phone: (610) 402-6790. Providers update this record themselves, so call before visiting.

How can I verify Ya-Yu Lee, MD's license?

NPPES lists Pennsylvania license number MD430220, 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 Ya-Yu Lee, MD prescribe under Medicare Part D?

In 2024, Ya-Yu Lee, MD had 2,555 Medicare Part D claims for 492 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.