Doctor profile · Federal record

Dr. Dennis Cramer, DO

Neurological Surgery Physician (CMS: Neurosurgery) · Riverside, CA

  • NPI 1336353341
  • Accepts Medicare
  • 25 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6276 River Crest Dr
Riverside, CA 925070783
(951) 413-0200
fax (951) 653-5161

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
August 9, 2010
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207T00000X — NUCC code
State license (1)
California #20A8197

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336353341. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,913
Distinct HCPCS
10
Medicare allowed
$76,893
HCPCS Description Services Patients Avg allowed
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 1,498 17 $25
99214 Established patient office or other outpatient visit, 30-39 minutes 140 72 $132
99213 Established patient office or other outpatient visit, 20-29 minutes 49 34 $93
72110 X-ray of lower and sacral spine, minimum of 4 views 48 48 $55
99204 New patient office or other outpatient visit, 45-59 minutes 28 28 $172
72040 X-ray of upper spine, 2-3 views 27 15 $42
72050 X-ray of upper spine, 4-5 views 26 26 $57
72100 X-ray of lower and sacral spine, 2-3 views 25 18 $43
J1030 Injection, methylprednisolone acetate, 40 mg 17 14 $8
72070 X-ray of middle spine, 2 views 16 15 $35

In context: peer comparison

Among 2 peers in Riverside Neurological Surgery Physician, average services per provider: 99. This provider delivers 19× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$33
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Pacira Pharmaceuticals Incorporated 1 $33.37

By nature of payment

Food and Beverage
$33

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
64
Patients
36
Total drug cost
$908
Drug Type Claims Patients Total cost
Gabapentin Generic 22 0 $395
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 22 18 $273
Cyclobenzaprine Hcl Generic 20 18 $240

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Dennis Cramer's medical specialty?
Dr. Dennis Cramer practices Neurological Surgery Physician in Riverside, CA.
Where does Dr. Dennis Cramer practice?
Dr. Dennis Cramer practices at 6276 River Crest Dr, Riverside, CA 925070783. Office phone: 9514130200.
What is Dr. Dennis Cramer's NPI?
Dr. Dennis Cramer's National Provider Identifier (NPI) is 1336353341, issued by NPPES.
Does Dr. Dennis Cramer accept Medicare assignment?
Yes. Dr. Dennis Cramer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dennis Cramer commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility (HCPCS 97110); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.