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DR. MARK A RIEGER MD
NPI 1831161751
Orthopaedic Surgery - Pediatric Orthopaedic Surgery in Cedar Knolls, NJ

Active since February 03, 2006PECOS Enrolled
218 RIDGEDALE AVE STE 101, CEDAR KNOLLS, NJ 07927(973) 538-7700(973) 538-9478 Get Directions Write a Review

NPPES record last updated: December 10, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 10, 2020, Sep 6, 2019, Dec 17, 2018 (3 updates tracked since 2018).

About Dr. Mark A Rieger Md NPPES

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

DR. MARK A RIEGER MD (NPI 1831161751) is an individual pediatric orthopaedic surgery provider in Cedar Knolls, New Jersey, licensed in New Jersey (25MA05303900) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831161751
Entity TypeIndividualMale
Primary Taxonomy207XP3100X
Provider Legal NameDR. MARK A RIEGERCredential: MD
Location Address218 RIDGEDALE AVE STE 101Cedar Knolls, NJ 07927-2109
Mailing Address218 Ridgedale Ave Ste 101Cedar Knolls, NJ 07927-2109 · (973) 538-7700 · Fax (973) 538-9478
Phone(973) 538-7700
Fax(973) 538-9478
Sole ProprietorNo
Enumeration DateFebruary 3, 2006
Last NPPES UpdateDecember 10, 20203 updates tracked since enumeration
NPPES CertifiedDecember 10, 2020
✔ NPI 1831161751 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Pediatric Orthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207XP3100X
License✔ Licensed in NJ · 25MA05303900
Definition
An orthopedic surgeon who has additional training and experience in diagnosing, treating and managing musculoskeletal problems in infants, children and adolescents. These may include limb and spine deformities (such as club foot, scoliosis); gait abnormalities (limping); bone and joint infections; broken bones.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License MA53039 (NJ), 64729 (CT)
218 RIDGEDALE AVE STE 101, Cedar Knolls, NJ 07927
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark A Rieger Md 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

3

Medicare enrollment records show Mark Rieger reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Consensus Medical Group LLC
51 mi
Internal Medicine
2399 ROUTE 34 BLDG A5
Manasquan, NJ 08736
  • Reassigned Medicare billing, New Jersey enrollment
  • 150 clinicians in this Medicare group
NPI 1811466881 (732) 528-5533
Connecticut Children's Specialty Group, Inc.
113 mi
Pediatrics
282 WASHINGTON ST
Hartford, CT 06106
  • Reassigned Medicare billing, Connecticut enrollment
  • 601 clinicians in this Medicare group
NPI 1669448882 (860) 545-9000
The Shriners' Hospital For Children
132 mi
Pediatric Orthopaedic Surgery
516 CAREW ST
Springfield, MA 01104
  • Reassigned Medicare billing, Massachusetts enrollment
  • 128 clinicians in this Medicare group
NPI 1285078444 (413) 787-2000

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

Other Providers at the Same Location NPPES 10

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

DR. MARK EPHRAIM SOLOMON DPM
Podiatrist (Foot & Ankle Surgery)
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 538-7700
ORTHOEDGE IMAGING, LLC
Radiology (Body Imaging)
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 216-4201
ALEXANDRA J D'AGOSTINI MD
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 538-7700
DR. TAMIR BLOOM M.D.
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 538-7700
MRS. JAIME A MORLEY PA-C
Physician Assistant
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 538-7700
DAVID LIN MD
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 538-7700
DR. SAMARA FRIEDMAN M.D.
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 538-7700
DR. JOSHUA AARON STRASSBERG MD
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
218 RIDGEDALE AVE STE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 538-7700

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 Mark Rieger's NPI number?

The NPI number for Mark Rieger is 1831161751. It was assigned to this individual provider in the NPPES registry on February 3, 2006.

Where is Mark Rieger located?

Mark Rieger practices at 218 Ridgedale Ave Ste 101, Cedar Knolls, NJ 07927. The listed phone number is (973) 538-7700.

What is Mark Rieger's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Pediatric Orthopaedic Surgery, with taxonomy code 207XP3100X.

Is Mark Rieger enrolled in Medicare?

Yes. Mark Rieger is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mark Rieger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Rieger reassigns Medicare benefits to 3 organizations: Consensus Medical Group LLC (Manasquan, NJ), Connecticut Children's Specialty Group, Inc. (Hartford, CT) and The Shriners' Hospital For Children (Springfield, MA). 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 Mark Rieger'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 Mark Rieger was last updated on December 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.