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Active NPI 1225533458 Individual Practitioner Male Practitioner

Dr. Calvin Horace Knapp , MD

Dermatology • Everett, WA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Calvin Knapp, MD is a certified Dermatology practicing in Everett, WA. With approximately 8 years of clinical experience since completing medical education in 2018, Dr. Knapp delivers high-quality medical care to the local community at 4004 COLBY AVE.

Dr. Knapp is affiliated with Optum Care Washington Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include pathology examination of tissue using a microscope, intermediate complexity, established patient outpatient office visit, new 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

4004 Colby Ave

Everett, WA 982016203

Telephone 4253395417
Fax 4253395429
Associated Practice Facility / Clinic
🏢 Optum Care Washington Pllc Facility NPI 1225207384

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 Dermatology in Everett, WA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
8 Yrs -10.9 yrs vs City Avg
City Avg: 18.9 Yrs
State Avg: 19.7 Yrs
Regional Practice Density
11 Specialists

Practicing in Everett, WA (397 Statewide)

Telehealth Adoption Rate
9.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
65.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Knapp (8 Years) 8 Yrs
Everett Specialty Average (18.9 Years) 18.9 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
88305 Pathology examination of tissue using a microscope, intermediate complexity
161 117 $217.50 $72.14
99213 Established patient office or other outpatient visit, typically 15 minutes
119 90 $251.08 $90.82
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
89 89 $311.54 $109.22
11102 Tangential biopsy of single skin lesion
76 66 $293.25 $96.24
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
74 51 $346.66 $126.80
17000 Destruction of skin growth
65 58 $188.50 $56.17
17003 Destruction of precancer skin growth, 2-14 growths
56 25 $17.75 $6.77
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
49 49 $463.79 $163.65
17110 Destruction of up to 14 skin growths
34 30 $328.00 $109.38
88342 Special stained specimen slides to examine tissue, initial procedure
26 25 $332.25 $107.34
87070 Bacterial culture
13 11 $19.25 $8.45
87205 Special gram or giemsa stain for microorganism
13 11 $9.75 $4.18
11103 Biopsy of related skin growth, each additional growth
13 11 $155.50 $50.40

Medical Specialties & State Licenses

CMS Verified: 2026-04-17
Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

State License WA MD61463521

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Hospital & Practice Group Affiliations

Optum Care Washington Pllc

8910 Vernon Rd, Lake Stevens, WA 982582400

Phone: 4253971700

Practice Associates & Co-Workers

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

10 Associated Practitioners
NPI 1235394560

Doctor of Medicine (M.D.)

NPI 1336599208

Doctor of Medicine (M.D.)

NPI 1356875835

Doctor of Medicine (M.D.)

NPI 1396136057

Doctor of Medicine (M.D.)

NPI 1538255294

Doctor of Medicine (M.D.)

Michelle Draper , ARNP

Nurse Practitioner

NPI 1578573648

Advanced Registered Nurse Practitioner

Career & Practice History Timeline

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

13 Historical Events
📍
Updated Business Mailing Address April 17, 2026

Registered at 7600 EVERGREEN WAY, EVERETT, WA 982036421 (Tel: 2068605414)

📍
Updated Business Mailing Address September 04, 2025

Registered at PO BOX 5127, EVERETT, WA 982065127 (Tel: 2068605414)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 04, 2025

Dermatology (License #MD61463521 in WA)

📍
Updated Practice Location August 07, 2023

Registered at 4004 COLBY AVE, EVERETT, WA 982016203 (Tel: 4253395417)

📍
Updated Business Mailing Address August 07, 2023

Registered at 4004 COLBY AVE, EVERETT, WA 982016203

📍
Updated Practice Location June 21, 2019

Registered at 3303 SW BOND AVE # 16D, PORTLAND, OR 97239 (Tel: 5034183376)

📍
Updated Business Mailing Address June 21, 2019

Registered at 3303 SW BOND AVE # 16D, PORTLAND, OR 972394501

NPI Profile Active March 29, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location March 29, 2018

Registered at 925 SENECA ST, SEATTLE, WA 981012742 (Tel: 2065836079)

📍
Updated Business Mailing Address March 29, 2018

Registered at 3905 4TH AVE NE, APT 301, SEATTLE, WA 981056829

👤
Provider Name / Credentials Updated March 29, 2018

Recorded as CALVIN KNAPP, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 29, 2018

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 29, 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: 1225533458
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 29, 2018
Last Update: April 17, 2026
Sole Proprietor: No

Mailing Address

7600 Evergreen Way

Everett, WA 982036421

Phone: 2068605414

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.