Doctor profile · Federal record
Dr. Kenneth Rieger, M.D.
Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Orthopaedic Surgery of the Spine Physician · Chatham, NJ
- NPI 1275559700
- Accepts Medicare
- MIPS 77.4 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
40 Main St
Chatham, NJ 079282431
(973) 635-0800
fax (973) 635-6254 - Additional location
-
70 Sparta Ave Ste 202
Sparta, NJ 078711760
fax (973) 635-3137
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- February 18, 2026
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207X00000X — NUCC code
- State licenses (2)
- New Jersey #25MA08296300 · New Jersey #25MA08579500
- Medicaid (2)
- IN #200828910 · KY #64125370
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275559700. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
432
Distinct HCPCS
9
Medicare allowed
$56,435
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 118 | 83 | $95 | |
72110 |
X-ray of lower and sacral spine, minimum of 4 views | 112 | 97 | $58 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 67 | 67 | $122 | |
63048 |
Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | 32 | 17 | $212 | |
72050 |
X-ray of upper spine, 4-5 views | 27 | 26 | $58 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 23 | 21 | $130 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 22 | 22 | $176 | |
63047 |
Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | 17 | 17 | $862 | |
97760 |
Training in the use of orthopedic device for arm, leg and/or trunk, each 15 minutes | 14 | 14 | $50 |
In context: peer comparison
Among 1 peers in Chatham Orthopaedic Surgery Physician, average services per provider: 48. This provider delivers 9.0× the peer median.Open Payments
Industry payments received
All-time total
$197
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Alphatec Spine, INC | 1 | $147.20 | |
| Stryker Corporation | 1 | $50.00 |
By nature of payment
Frequently asked questions
What is Dr. Kenneth Rieger's medical specialty?
Dr. Kenneth Rieger practices Orthopaedic Surgery Physician in Chatham, NJ.
Where does Dr. Kenneth Rieger practice?
Dr. Kenneth Rieger practices at 40 Main St, Chatham, NJ 079282431. Office phone: 9736350800.
What is Dr. Kenneth Rieger's NPI?
Dr. Kenneth Rieger's National Provider Identifier (NPI) is 1275559700, issued by NPPES.
Does Dr. Kenneth Rieger accept Medicare assignment?
Yes. Dr. Kenneth Rieger accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kenneth Rieger commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); X-ray of lower and sacral spine, minimum of 4 views (HCPCS 72110); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.