Michael Chyu, M.D.
Internal Medicine Physician · Allentown, PA
Michael Chyu, M.D. is an internal medicine physician with a practice address in Allentown, Pennsylvania, and NPI 1558522425, issued on Jun 23, 2008. Check the license (Pennsylvania MD446388, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Michael Chyu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD446388 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1605 N Cedar Crest Blvd Ste 110B, Allentown, PA 18104
- Phone
- (610) 973-1410
- Enumerated
- Jun 23, 2008
- Record last updated
- Dec 21, 2023
- Fax
- (610) 973-1442
- Medicare enrollment
- Enrolled (PECOS I20120809000088); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 2008
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 1605 N Cedar Crest Blvd Ste 110B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laura Bielecki, PA-CPhysician Assistant1770581365
- Rosie Honer, RNNurse Practitioner1518101260
- Kelly Hudock, CRNPFamily Nurse Practitioner1639137771
- Susanne Lane-Sandt, CRNPFamily Nurse Practitioner1891963427
- Jennifer Legar, MDInternal Medicine Physician1659500692
- Ashley Shupp, PA-CMedical Physician Assistant1518254788
Verify Michael Chyu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD446388Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average internal medicine physician in 2024
3,280 Medicare Part D claims for 190 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium240 claims
- Furosemide159 claims
- Gabapentin156 claims
- Amlodipine Besylate151 claims
- Eliquis118 claims
- Famotidine110 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: $13.10
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. 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.
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
- Avicenna Physician Services IncAllentown, PA
- St Joseph Medical GroupReading, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Chyu among 7,300 internal medicine physician records in Pennsylvania
Michael Chyu, M.D. 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 2008, is newer than 43% of them.
- NPI issued2008 · 43% of these records are older, 53% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2008 · median 2008 among the 4,208 with a school on file
- 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).
218 internal medicine physician records list a practice address in Allentown
They are 218 of the 5,904 NPPES records with a practice address in Allentown, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Allentown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Brandecker, MDAllentown, PA 181041023068376
- David Carney, MDAllentown, PA 181041245282094
- Jose Garcia, M.D.Allentown, PA 181041568441442
- Arthur Hoffman, M.D.Allentown, PA 181041508844333
- Glenn Kratzer, MDAllentown, PA 181041275583510
- Anil Kumar, M.D.Allentown, PA 181041093778359
- Sandra Latona, M.D.Allentown, PA 181041548212608
- Judith McDonald, MDAllentown, PA 181041558313403
Common questions
What is Michael Chyu, M.D.'s NPI number?
Michael Chyu, M.D.'s National Provider Identifier (NPI) is 1558522425, issued on Jun 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Michael Chyu, M.D. located?
The NPPES record lists a practice address at 1605 N Cedar Crest Blvd Ste 110B, Allentown, PA, 18104. Phone: (610) 973-1410. Providers update this record themselves, so call before visiting.
How can I verify Michael Chyu, M.D.'s license?
NPPES lists Pennsylvania license number MD446388, 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 Michael Chyu, M.D. prescribe under Medicare Part D?
In 2024, Michael Chyu, M.D. had 3,280 Medicare Part D claims for 190 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.