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Active NPI 1427533603 Individual Practitioner Male Practitioner

John Peter Halfen , PA

Physician Assistant • Arvada, CO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

John Halfen, PA is a certified Physician Assistant practicing in Arvada, CO. With approximately 8 years of clinical experience since completing medical education in 2018, John Halfen delivers high-quality medical care to the local community at 8175 SHERIDAN BLVD.

John Halfen is affiliated with Iora Health Colorado, P.C. and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

8175 Sheridan Blvd
Unit N

Arvada, CO 80003

Telephone 3035570855
Fax 4152527176
Associated Practice Facility / Clinic
🏢 Iora Senior Health, Llc Facility NPI 1760867428

Medicare Profile & Education

Medical School

Other

Graduation Year

2018

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Arvada, CO

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
8 Yrs +0.4 yrs vs City Avg
City Avg: 7.6 Yrs
State Avg: 13.1 Yrs
Regional Practice Density
62 Specialists

Practicing in Arvada, CO (3810 Statewide)

Telehealth Adoption Rate
12.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
55.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Halfen (8 Years) 8 Yrs
Arvada Specialty Average (7.6 Years) 7.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
147 115 $240.29 $109.67
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
88 79 $35.82 $13.84
99213 Established patient office or other outpatient visit, typically 15 minutes
42 38 $172.00 $77.75
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
17 17 $245.00 $110.53
G0008 Administration of influenza virus vaccine
11 11 $80.00 $33.13

Medical Specialties & State Licenses

CMS Verified: 2025-04-17
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License CO PA.0005617

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Iora Health Colorado, P.c.

1080 S Sable Blvd, Aurora, CO 800123796

Phone: 3035529577

Iora Health Colorado, P.c.

8175 Sheridan Blvd, Arvada, CO 800031928

Phone: 3035570855

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
NPI 1003020041

Doctor of Medicine (M.D.)

Makeda Gant

Nurse Practitioner - Family

NPI 1003201039
Shuk Fong Tang , APRN

Nurse Practitioner - Family

NPI 1003221102

Advanced Practice Registered Nurse

NPI 1003227927

Doctor of Medicine (M.D.), MSPH

Reshma Patel , PA

Physician Assistant

NPI 1003239765

Physician Assistant

Sarah Haney

Family Medicine

NPI 1003285420

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location October 23, 2024

Registered at 8175 SHERIDAN BLVD, UNIT N, ARVADA, CO 80003 (Tel: 3035570855)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 27, 2018

Physician Assistant (License #PA.0005617 in CO)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 19, 2018

Physician Assistant (License #1149910 in CO)

NPI Profile Active October 03, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location October 03, 2018

Registered at 2801 PURCELL ST # 1, BRIGHTON, CO 806013551 (Tel: 3036597600)

📍
Updated Business Mailing Address October 03, 2018

Registered at 15476 W 64TH LOOP UNIT B, ARVADA, CO 800076447 (Tel: 3204916802)

👤
Provider Name / Credentials Updated October 03, 2018

Recorded as JOHN HALFEN, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 03, 2018

Family Medicine (License #1149910 in CO)

🟢
Initial NPI Registration & Enumeration October 03, 2018

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1427533603
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 03, 2018
Last Update: April 17, 2025
Sole Proprietor: No

Mailing Address

15476 W 64th Loop Unit B

Arvada, CO 800076447

Phone: 3204916802

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.