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Edit this profileAt a glance
- 4004 Colby Ave, Everett, WA 98201
About Dr. Knapp
Based in Everett, WA, Calvin H. Knapp, MD is listed in the NPI registry under dermatology. According to Medicare claims data, Calvin cared for 633 Medicare patients across 788 services. The services billed most often include pathology examination of tissue using a microscope, intermediate complexity, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. NPI 1225533458 identifies this record in the national registry.
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
- (425) 339-5417
- Email not available
Practice Locations
4004 COLBY AVE
Everett, WA 98201
Conditions Commonly Evaluated or Treated
Within Dermatology 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
Acne and follicular disorders
Eczema and inflammatory skin disease
Infections and infestations
Pigment, growths, and benign lesions
Skin cancer
Urticaria, itch, and vascular
Autoimmune and connective tissue
Infections
Rashes & allergy
Skin growths
Procedures & services
Most searched procedures
Diagnostic procedures
Lesion treatment
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
- Incision and drainage of an abscess
Medical dermatology treatment
Cosmetic
Cosmetic and minor surgery
Cosmetic dermatology
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Skin cancer surgery
Skin growths
Procedures Most Often Billed to Medicare
788 services · 633 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of related skin growth, first growth | Procedure | 11102 |
76 | As often as other peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
65 | Less often than most peers in Dermatology |
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
56 | Less often than most peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
34 | Less often than most peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
13 | Less often than most peers in Dermatology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
161 | Less often than most peers in Dermatology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
119 | Less often than most peers in Dermatology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
89 | More often than most peers in Dermatology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
74 | As often as other peers in Dermatology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
49 | More often than most peers in Dermatology |
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.
Other dermatologists at this location 8
Same specialty, same street address — most likely the same department or group.
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 dermatologists in Everett 2
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of related skin growth, first growth 8
Providers in WA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Knapp?
Dr. Knapp is a dermatologist (skin doctor) in Everett, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
What is Dr. Knapp's address?
Dr. Knapp is listed at 4004 Colby Ave, Everett, WA 98201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Knapp?
The number on file is (425) 339-5417. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Knapp's NPI number?
Dr. Knapp's National Provider Identifier is 1225533458. 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
Where did Dr. Knapp train?
Dr. Knapp attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Knapp been practicing?
Dr. Knapp has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Knapp perform?
According to Medicare billing data, Dr. Knapp performs procedures including biopsy of related skin growth, first growth, destruction of precancer skin growth, 1 growth and destruction of precancer skin growth, 2-14 growths, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Knapp confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Knapp. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.