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Orthopedic Surgery

Carl B. Weiss Jr., MD

Works at hospitals in Allentown, PA · East Stroudsburg, PA · Stroudsburg, PA … · Pennsylvania, New Jersey

Summary

Dr. Carl B. Weiss Jr., MD is an orthopedic surgeon at 1250 S Cedar Crest Blvd, 110 Lvpg Orthopedics and Sports Medicine, Allentown, PA 18103. Phone: (610) 402-8900. Accepts Medicare assignment. In 2024, Carl B. Weiss Jr. had 494 Original Medicare patients and 4,938 services. NPI 1811995962. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Carl B. Weiss Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Carl B. Weiss Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Carl B. Weiss Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Carl B. Weiss Jr. see?
In 2024, CMS data shows 494 Original Medicare patients and 4,938 services for Carl B. Weiss Jr.. This counts Original Medicare only and measures volume, not quality.
What is Carl B. Weiss Jr.'s NPI number?
1811995962. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Carl B. Weiss Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients494
Services billed to Medicare4,938
Different services or procedures63
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)2,394 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)811 services
  3. X-ray of knee, 3 views (73562)427 services
  4. Aspiration and/or injection of fluid from large joint (20610)361 services
  5. X-ray of hip, 2-3 views (73502)105 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis75%
  • Diabetes31%
  • Anxiety27%
  • Chronic kidney disease27%

Hospitals where Carl B. Weiss Jr. works

Medicare's Facility Affiliation Data lists Carl B. Weiss Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Lehigh Valley HospitalAllentown, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390133
  • Lehigh Valley Hospital - PoconoEast Stroudsburg, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390201
  • St Luke's Hospital - Monroe CampusStroudsburg, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390330
  • St Luke's Warren HospitalPhillipsburg, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310060

Practice locations

Addresses where Carl B. Weiss Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

  • 1250 S Cedar Crest Blvd, 110 Lvpg Orthopedics and Sports MedicineAllentown, PA 18103 (610) 402‑8900

Group practices

Medicare enrollment lists Carl B. Weiss Jr. as a member of this group (CMS data updated October 2, 2026).

  • Lehigh Valley Physician Group2,542 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Pennsylvania →

Other orthopedic surgeons in Allentown

Clinicians with the same Medicare primary specialty in Allentown, PA — not a recommendation.

All orthopedic surgeons in Allentown →

Other clinicians in Lehigh Valley Physician Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolJs Weill Medical College, Cornell University
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811995962
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians