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DR. C WILLIAM RIEDEL D.O.
NPI 1629066923
Obstetrics & Gynecology in Allentown, PA

Active since October 11, 2005PECOS Enrolled
95.64/100
CMS Quality Rating
1941 W HAMILTON ST, SUITE 100, ALLENTOWN, PA 18104(610) 432-4665(610) 432-8512 Get Directions Write a Review

NPPES record last updated: May 13, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. C William Riedel D.o. NPPES

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

DR. C WILLIAM RIEDEL D.O. (NPI 1629066923) is an individual obstetrics & gynecology provider in Allentown, Pennsylvania, licensed in Pennsylvania (OS009291L) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629066923
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. C WILLIAM RIEDELCredential: D.O.
Location Address1941 W HAMILTON ST, SUITE 100Allentown, PA 18104-6470
Mailing Address1941 W Hamilton St, Suite 100Allentown, PA 18104-6470 · (610) 432-4665 · Fax (610) 432-8512
Phone(610) 432-4665
Fax(610) 432-8512
Sole ProprietorNo
Enumeration DateOctober 11, 2005
Last NPPES UpdateMay 13, 2024
NPPES CertifiedMay 13, 2024
✔ NPI 1629066923 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in PA · OS009291L
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1941 W HAMILTON ST, Allentown, PA 18104
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Other Identifiers 2

Medicaid0017558430005PA
Other026537PA · Medicare Group B

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. C William Riedel D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show C Riedel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St. Luke's Physician Group Inc.
Same address
Obstetrics & Gynecology
1941 HAMILTON ST, SUITE 100
Allentown, PA 18104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • Medicare enrollment name: St Lukes Physician Group Inc
  • 2,851 clinicians in this Medicare group
NPI 1437541182 (610) 628-8910
Star Community Health, Inc
6.8 mi
General Practice
511 E 3RD ST STE 202
Bethlehem, PA 18015
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 318 clinicians in this Medicare group
NPI 1033686159 (484) 526-4700

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
43 services24 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
30 services30 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
19 services14 patients

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
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

95.64/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.57
Promoting Interoperability100
Improvement Activities40

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.

MRS. KATE BIERCE MPAS, PA-C
Physician Assistant (Medical)
1941 W HAMILTON ST, SUITE 102
ALLENTOWN, PA 18104
Lehigh County (610) 776-1603
PRIMARY CARE ASSOCIATES IN THE LEHIGH VALLEY, P.C.
Internal Medicine
1941 W HAMILTON ST, SUITE 102
ALLENTOWN, PA 18104
Lehigh County (610) 776-1603
DR. MATTHEW NUSSBAUM D.O.
Family Medicine
1941 W HAMILTON ST, SUITE 102
ALLENTOWN, PA 18104
Lehigh County (610) 776-1603
HAMILTON OBSTETRICS & GYNECOLOGY,P.C.
Obstetrics & Gynecology
1941 W HAMILTON ST, SUITE 100
ALLENTOWN, PA 18104
Lehigh County (610) 432-4665
MR. SCOTT EPHRAIM STEIN PA-C
Physician Assistant (Medical)
1941 W HAMILTON ST, SUITE 102
ALLENTOWN, PA 18104
Lehigh County (610) 776-1603
MRS. DENISE S STEIN CRNP
Nurse Practitioner
1941 W HAMILTON ST, SUITE 102
ALLENTOWN, PA 18104
Lehigh County (610) 776-1603

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 C Riedel's NPI number?

The NPI number for C Riedel is 1629066923. It was assigned to this individual provider in the NPPES registry on October 11, 2005.

Where is C Riedel located?

C Riedel practices at 1941 W Hamilton St Suite 100, Allentown, PA 18104. The listed phone number is (610) 432-4665.

What is C Riedel's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is C Riedel enrolled in Medicare?

Yes. C Riedel is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for C Riedel's services?

According to the CMS Revalidation Reassignment List (October 2026 release), C Riedel reassigns Medicare benefits to 2 organizations: St. Luke's Physician Group Inc. (Allentown, PA) and Star Community Health, Inc (Bethlehem, 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 C Riedel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for C Riedel was last updated on May 13, 2024. 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.