DR. PETER J LENNARSON (MD) – Neurological Surgery Physician, NPI 1013966001

DR. PETER J LENNARSON (MD) is a healthcare provider. based in Denver, Colorado. specializing in NEUROSURGERY. They hold the professional credentials MD. They hold a License No. 23280 (NE). The NPI Number for DR. PETER J LENNARSON (MD) is 1013966001

Main info

Male
31 Years Of Experience
Accepts Medicare Assignment
Name
DR. PETER J LENNARSON (MD)
NPI
1013966001
Phone
(303) 338-4545
Address
2045 N Franklin St
Enumeration Date
8 May 2006
Last Update Date
14 April 2026

Doctor Profile

Medical School Name
UNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Secondary Phone
7208480000
Graduation Year
1995 (31 years ago)
PAC ID
4183669898
Group Practice PAC ID
3476465667
Professional Enrollment ID
I20130904000291
Address ID
CO800452545AU12605AVEX413
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience73
Completeness85
Years active:20State licenses:2Digital endpointsOther names

187 NEUROSURGERY in CO

Provider Addresses for DR. PETER J LENNARSON (MD)

  • 2045 N Franklin St

    Denver, CO 802055437

    Phone: (303) 338-4545

    Type: Location

  • 2045, Franklin Street, City Park West, Denver, Denver County, Colorado, 80205, United States

    DENVER, CO 802055437

    Phone: (303) 338-4545

    Type: Mailing

  • PO BOX 110429

    AURORA, CO 800420429

    Phone:

    Type: Mailing

  • 12605 E 16TH AVE

    AURORA, CO 800452545

    Phone: (720) 848-0000

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 12 Open Payments records for all available years, with a total value of $1,167.

Total Amount is formed as General ($1,167) + Research ($0) + Ownership ($0) = $1,167.

Last reported payment date: 2024-11-22 • Largest payer in this snapshot: MML US, Inc. ($676).

Total Amount

$1,167

General + Research + Ownership

Payments

12

Total payment records

General Amount

$1,167

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-22

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2013-09-04

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20130904000291INeurosurgeryCOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
22614Fusion of additional segment of spine5713$0
99204New patient office or other outpatient visit, 45-59 minutes4141$0
22853Insertion of cage or mesh device to spine bone and disc space during spine fusion3219$0
99205New patient office or other outpatient visit, 60-74 minutes2525$0
61783Computer-assisted spinal procedure1817$0
View full utilization report →

Insurance plans in this area (ZIP 80205)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3476465667View full group profile
NameSpecialtyState
-CO
Family PracticeCO
Advanced Heart Failure And Transplant Cardiology, Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal MedicineCO
Emergency MedicineCO
Emergency MedicineCO
-CO
-CO
Emergency MedicineCO
-CO
-CO

Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. PETER J LENNARSON (MD)?
DR. PETER J LENNARSON (MD) — NPI 1013966001 — is the standard way to identify this listing.
Does the file indicate DR. PETER J LENNARSON (MD) is practicing under active NPI?
Directory data currently reports DR. PETER J LENNARSON (MD) as active.
What is DR. PETER J LENNARSON (MD) best known for clinically?
Directory data describes DR. PETER J LENNARSON (MD) with Neurological Surgery Physician. Clinical services aligned with this taxonomy classification.
What area does DR. PETER J LENNARSON (MD) serve?
DR. PETER J LENNARSON (MD)'s listing highlights Denver, Colorado; more addresses can appear in NPPES.
Is the information about DR. PETER J LENNARSON (MD) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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