Active NPI 1396093902 Individual Practitioner Male Practitioner

Christopher Tyler Key , PA-C

Physician Assistant • Walnut Creek, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Christopher Key, PA-C is a certified Physician Assistant practicing in Walnut Creek, CA. With approximately 14 years of clinical experience since completing medical education in 2012, Christopher Key delivers high-quality medical care to the local community at 122 LA CASA VIA STE 120.

Christopher Key is affiliated with John Muir Physician Network and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit, routine electrocardiogram (ecg) using at least 12 leads with tracing, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

122 La Casa Via Ste 120

Walnut Creek, CA 945983019

Telephone 9259414058

Medicare Profile & Education

Medical School

Other

Graduation Year

2012

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Walnut Creek, CA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

14 Yrs +3.9 yrs vs City Avg

City Avg: 10.1 Yrs

State Avg: 11.5 Yrs

Regional Practice Density

92 Specialists

Practicing in Walnut Creek, CA (14617 Statewide)

Telehealth Adoption Rate

20.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

59.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Key (14 Years) 14 Yrs

Walnut Creek Specialty Average (10.1 Years) 10.1 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
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	266	266	$589.00	$233.79
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	232	231	$76.00	$9.03
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	114	113	$421.00	$192.57
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	36	$316.00	$132.18
36415 Insertion of needle into vein for collection of blood sample	17	17	$16.00	$8.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	187	184	$15.00	$8.40
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	179	179	$569.00	$216.84
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	123	123	$73.00	$8.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	59	59	$305.00	$94.45
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	58	57	$406.00	$175.72

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	567	309	$282.00	$88.47
99213 Established patient office or other outpatient visit, typically 15 minutes	87	72	$192.00	$64.09
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	63	63	$291.00	$109.00
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	31	31	$170.00	$66.43
99442 Telephone medical discussion with physician, 11-20 minutes	29	23	$192.00	$75.41
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	27	21	$377.00	$127.00
81003 Automated urinalysis test	18	16	$8.00	$2.25
99441 Telephone medical discussion with physician, 5-10 minutes	18	15	$117.00	$46.27
36415 Insertion of needle into vein for collection of blood sample	17	13	$12.00	$3.00
99495 Transitional care management services for problem of at least moderate complexity	14	13	$425.00	$169.69
G0009 Administration of pneumococcal vaccine	12	12	$26.00	$14.78

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	417	284	$282.00	$79.85
99213 Established patient office or other outpatient visit, typically 15 minutes	72	62	$192.00	$53.82
99442 Telephone medical discussion with physician, 11-20 minutes	57	47	$189.86	$61.16
90662 Influenza vaccine split virus, preservative free	43	43	$63.27	$60.70
99441 Telephone medical discussion with physician, 5-10 minutes	43	35	$117.00	$37.68
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$281.00	$88.97
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	17	$377.00	$108.04
G0009 Administration of pneumococcal vaccine	13	13	$26.00	$16.52
36415 Insertion of needle into vein for collection of blood sample	12	11	$12.00	$3.00
99495 Transitional care management services for problem of at least moderate complexity	11	11	$425.00	$153.46
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	11	11	$291.00	$95.87

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	18	17	$282.00	$91.14

Medical Specialties & State Licenses

CMS Verified: 2023-02-13

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License CA PA22499

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.

Physician Assistant

NUCC Taxonomy Code: 363A00000X

State License OR PA195199

Hospital & Practice Group Affiliations

John Muir Physician Network

2400 Balfour Rd, Brentwood, CA 945134956

Phone: 9253088112

John Muir Physician Network

5161 Clayton Rd, Concord, CA 945213157

Phone: 9256098282

Practice Associates & Co-Workers

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

5 Associated Practitioners

Jennifer Falk , PA-C

Physician Assistant

NPI 1093014110

Physician Assistant (Certified)

Li Chen , NP

Nurse Practitioner - Adult Health

NPI 1336232560

Nurse Practitioner

John Trix , MS, RN, APRN-BC

Nurse Practitioner

NPI 1477745685

Master of Science, Registered Nurse, APRNBC

Leigh Bolton , NP

Nurse Practitioner

NPI 1679192561

Nurse Practitioner

Kristen Lateiner , NP

Nurse Practitioner - Family

NPI 1972739498

Nurse Practitioner

Career & Practice History Timeline

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

11 Historical Events

📍

Updated Practice Location February 13, 2023

Registered at 122 LA CASA VIA STE 120, WALNUT CREEK, CA 945983019 (Tel: 9259414058)

📍

Updated Business Mailing Address February 13, 2023

Registered at 1450 TREAT BLVD # 300, WALNUT CREEK, CA 945972168 (Tel: 9259522828)

📍

Updated Practice Location November 21, 2019

Registered at 2859 STATE ST STE 101, MEDFORD, OR 975048495 (Tel: 5412826505)

📍

Updated Business Mailing Address November 21, 2019

Registered at 2825 E BARNETT RD, MEDFORD, OR 975048332 (Tel: 5412826520)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 21, 2019

Physician Assistant (License #PA195199 in OR)

✅

NPI Profile Active August 29, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location August 29, 2012

Registered at 400 W MINERAL KING AVE, VISALIA, CA 932916237 (Tel: 5596242000)

📍

Updated Business Mailing Address August 29, 2012

Registered at 2100 POWELL ST, 900, EMERYVILLE, CA 946081826 (Tel: 5103502600)

👤

Provider Name / Credentials Updated August 29, 2012

Recorded as CHRISTOPHER KEY, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 29, 2012

Physician Assistant (License #PA22499 in CA)

🟢

Initial NPI Registration & Enumeration August 29, 2012

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: 1396093902

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: August 29, 2012

Last Update: February 13, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1450 Treat Blvd # 300

Walnut Creek, CA 945972168

Phone: 9259522828

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.