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MICHAEL CHYU M.D.
NPI 1558522425
Internal Medicine in Allentown, PA

Active since June 23, 2008PECOS EnrolledAccepts Medicare Assignment
1605 N CEDAR CREST BLVD STE 110B, ALLENTOWN, PA 18104(610) 973-1410(610) 973-1442 Get Directions Write a Review

NPPES record last updated: December 21, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 13, 2022, Dec 14, 2021, Jan 3, 2020 and 2 more (5 updates tracked since 2019).

About Michael Chyu M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHAEL CHYU M.D. (NPI 1558522425) is an individual internal medicine provider in Allentown, Pennsylvania, licensed in Pennsylvania (MD446388) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Penn State Health St. Joseph, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1558522425
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL CHYUCredential: M.D.
Location Address1605 N CEDAR CREST BLVD STE 110BAllentown, PA 18104-2351
Mailing Address1605 N Cedar Crest Blvd Ste 110bAllentown, PA 18104-2351 · (610) 973-1410 · Fax (610) 973-1442
Phone(610) 973-1410
Fax(610) 973-1442
Sole ProprietorYes
Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 2008
Enumeration DateJune 23, 2008
Last NPPES UpdateDecember 21, 20235 updates tracked since enumeration
NPPES CertifiedDecember 21, 2023
✔ NPI 1558522425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · MD446388
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Hospice and Palliative MedicineTaxonomy 207RH0002X · License MD446388 (PA)
1605 N CEDAR CREST BLVD STE 110B, Allentown, PA 18104
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Secondary Practice Locations 2

Location 12166 S 12th StAllentown, PA 18103-8701 · Phone (610) 969-0100 · Fax (610) 969-0101
Location 22500 Bernville RdReading, PA 19605-9453 · Phone (610) 378-2000 · Fax (610) 378-2799

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael Chyu M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8426204348
PECOS Enrollment IDI20120809000088
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show Michael Chyu reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Avicenna Physician Services Inc
3.8 mi
Internal Medicine
5148 HAMILTON BLVD
Allentown, PA 18106
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 24 clinicians in this Medicare group
NPI 1801499850 (610) 439-8551
Rosenfeld Vanwirt PC
7.3 mi
Internal Medicine
3477 CORPORATE PKWY STE 100
Center Valley, PA 18034
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 44 clinicians in this Medicare group
NPI 1629402680 (484) 626-0480
Tower Health Medical Group
27 mi
Obstetrics & Gynecology
3701 PERKIOMEN AVE
Reading, PA 19606
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,473 clinicians in this Medicare group
NPI 1811335516 (610) 779-6550
St. Joseph Medical Group
28 mi
Primary Care
403 N 13TH ST
Reading, PA 19604
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 251 clinicians in this Medicare group
NPI 1750590881 (610) 375-8577
Penn State Health Medical Group, LLC
29 mi
Orthopaedic Surgery
2494 BERNVILLE RD STE 200
Reading, PA 19605
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 994 clinicians in this Medicare group
NPI 1942955521 (610) 378-2996

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
101 services78 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
52 services51 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
42 services40 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Penn State Health St. Joseph

Acute Care Hospitals · Reading, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390096
Location2500 Bernville RoadReading, PA 19605 · Berks County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 30

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314
DME-Orthotic Devices · category DF000N
2 suppliers69 claims69 services$22.82 avg. paid by Medicare
Irrigation tray with bulb or piston syringe, any purpose A4320
DME-Medical/Surgical Supplies · category DA000N
1 supplier14 claims140 services$4.83 avg. paid by Medicare
Urinary catheter anchoring device, adhesive skin attachment, each A4333
DME-Orthotic Devices · category DF000N
3 suppliers50 claims600 services$2.10 avg. paid by Medicare
Urinary catheter anchoring device, leg strap, each A4334
DME-Orthotic Devices · category DF000N
1 supplier12 claims12 services$4.80 avg. paid by Medicare
Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357
DME-Orthotic Devices · category DF000N
3 suppliers87 claims99 services$8.78 avg. paid by Medicare
Urinary drainage bag, leg or abdomen, vinyl, with or without tube, with straps, each A4358
DME-Orthotic Devices · category DF000N
3 suppliers81 claims162 services$6.39 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROSIE L HONER RN
Nurse Practitioner
1605 N CEDAR CREST BLVD STE 110B
ALLENTOWN, PA 18104
Lehigh County (610) 973-1410
ASHLEY SHUPP PA-C
Physician Assistant (Medical)
1605 N CEDAR CREST BLVD STE 110B
ALLENTOWN, PA 18104
Lehigh County (610) 973-1410
MS. KELLY A HUDOCK CRNP
Nurse Practitioner (Family)
1605 N CEDAR CREST BLVD STE 110B
ALLENTOWN, PA 18104
Lehigh County (610) 973-1410
JENNIFER LEGAR MD
Internal Medicine
1605 N CEDAR CREST BLVD STE 110B
ALLENTOWN, PA 18104
Lehigh County (610) 973-1410
LAURA L BIELECKI PA-C
Physician Assistant
1605 N CEDAR CREST BLVD STE 110B
ALLENTOWN, PA 18104
Lehigh County (610) 973-1410
SUSANNE N LANE-SANDT CRNP
Nurse Practitioner (Family)
1605 N CEDAR CREST BLVD STE 110B
ALLENTOWN, PA 18104
Lehigh County (610) 973-1410

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Chyu's NPI number?

The NPI number for Michael Chyu is 1558522425. It was assigned to this individual provider in the NPPES registry on June 23, 2008.

Where is Michael Chyu located?

Michael Chyu practices at 1605 N Cedar Crest Blvd Ste 110B, Allentown, PA 18104. The listed phone number is (610) 973-1410.

What is Michael Chyu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michael Chyu enrolled in Medicare?

Yes. Michael Chyu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Michael Chyu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Chyu reassigns Medicare benefits to 5 organizations: Avicenna Physician Services Inc (Allentown, PA), Rosenfeld Vanwirt PC (Center Valley, PA), Tower Health Medical Group (Reading, PA), St. Joseph Medical Group (Reading, PA) and Penn State Health Medical Group, LLC (Reading, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Chyu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Michael Chyu affiliated with any hospitals?

According to CMS data, Michael Chyu is affiliated with Penn State Health St. Joseph.

When was this NPI record last updated?

The NPPES record for Michael Chyu was last updated on December 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.