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Edit this profileWhere to find Peter J. Lennarson, MD
- Aurora location main office
12605 E 16Th Ave, Aurora, CO 80045 - Denver location
2045 N Franklin St, Denver, CO 80205
About Dr. Lennarson
Peter J. Lennarson, MD practices neurosurgery in Aurora, CO. Peter is a 1995 graduate of University of Wisconsin School of Medicine. Peter is also listed as specializing in neurological surgery. Medicare claims data shows Peter provided 252 services to 223 patients. The services billed most often include new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, fusion of additional segment of spine, and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more. The provider's National Provider Identifier (NPI) is 1013966001.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (720) 848-0000
- Email not available
Practice Locations
12605 E 16TH AVE
Aurora, CO 80045
2045 N Franklin St
Denver, CO 80205
Conditions Commonly Evaluated or Treated
Within Neurological Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Brain & spine conditions
Brain conditions
Brain disorders
- Acoustic Neuroma
- Brain Vascular Malformation
- Chiari Malformation
- Drug-Resistant Seizures
- Epidermoid cyst
- Hemorrhagic stroke
- Meningitis
- Normal Pressure Hydrocephalus
- Papilledema
- Pituitary Tumor
Brain injury
Brain tumors
Movement disorders
Nerve disorders
- Carpal tunnel
- Cubital tunnel syndrome
- Cut Or Injured Nerve
- Face Twitching
- Occipital neuralgia
- Outer thigh burning and numbness
- Thoracic outlet syndrome
- Trigeminal neuralgia
Pain
Pediatric conditions
Spine & back
- Arthritis of the spine
- Chronic back pain
- Chronic Neck Pain
- Degenerative disc disease
- Failed back surgery syndrome
- Severe back pain
- Spinal Cord Tumor
- Spondylolisthesis
- Tethered Spinal Cord
Spine conditions
- Bone Spurs In The Spine
- Fluid Cyst In Spinal Cord
- Spinal compression fracture
- Spine Infection
- Stress Fracture Of The Spine
Spine deformity
Trauma & injury
Procedures & services
Most searched procedures
Brain & spine surgery
Brain procedures
- Awake Brain Mapping Surgery
- Brain Shunt Placement
- Chiari Decompression Surgery
- Deep Brain Stimulation
- Draining A Brain Bleed
- Facial Nerve Decompression Surgery
- Laser Brain Surgery
- Minimally Invasive Endoscopic Brain Surgery
- Needle Brain Biopsy
Brain surgery
Cranial reconstruction
Diagnostic & therapeutic
Endovascular procedures
Functional neurosurgery
Monitoring & trauma
Nerve procedures
Nerve surgery
Pain procedures
- Epidural steroid injection
- Facet Joint Injections
- Pain pump implant
- Radiofrequency ablation
- Spinal cord stimulator implant
Pediatric neurosurgery
Radiation & radiosurgery
Radiation surgery
Skull base surgery
Spasticity treatment
Spine procedures
- Artificial Disc Replacement
- Kyphoplasty
- Nerve Opening Widening
- Scoliosis correction surgery
- SI Joint Fusion
- Spinal Cyst Removal
- Tethered Cord Release
- Vertebra Removal Surgery
Spine surgery
- Minimally Invasive Spine Surgery
- Neck Canal Enlargement Surgery
- Spinal Cord Tumor Removal
- Vertebroplasty
Vascular neurosurgery
Procedures Most Often Billed to Medicare
252 services · 223 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Fusion of additional segment of spine | Procedure | 22614 |
38 | Less often than most peers in Neurosurgery |
| Computer-assisted spinal procedure | Procedure | 61783 |
24 | More often than most peers in Neurosurgery |
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | Procedure | 22853 |
18 | Less often than most peers in Neurosurgery |
| Placement of stabilizing device to back, 3-6 spine bone segments | Procedure | 22842 |
17 | As often as other peers in Neurosurgery |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
15 | As often as other peers in Neurosurgery |
| Partial removal of bone of single segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back | Procedure | 63052 |
11 | Less often than most peers in Neurosurgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
53 | More often than most peers in Neurosurgery |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
28 | As often as other peers in Neurosurgery |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
19 | Less often than most peers in Neurosurgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
18 | Less often than most peers in Neurosurgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other neurosurgery specialists in Aurora 8
Same specialty, same city.
Trained at University of Wisconsin School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1995 at University of Wisconsin School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Fusion of additional segment of spine 7
Providers in CO who bill this service to Medicare most often.
Common questions
What is Dr. Lennarson's specialty?
Dr. Lennarson is a neurosurgery in Aurora, CO. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Lennarson?
Dr. Lennarson is listed at 12605 E 16Th Ave, Aurora, CO 80045. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Lennarson?
The number on file is (720) 848-0000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Lennarson?
Dr. Lennarson's National Provider Identifier is 1013966001. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Lennarson's medical education?
Dr. Lennarson attended University of Wisconsin School of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Lennarson have?
Dr. Lennarson has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Lennarson known for?
According to Medicare billing data, Dr. Lennarson performs procedures including fusion of additional segment of spine, computer-assisted spinal procedure and insertion of cage or mesh device to spine bone and disc space during spine fusion, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Lennarson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lennarson. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.