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Edit this profileWhere to find William T. Ko, M.D.
- Phoenix location main office
2224 W Northern Ave Ste D300, Phoenix, AZ 85021 - Phoenix location
2121 W Indian School Rd, Phoenix, AZ 85015
About Dr. Ko
William T. Ko, M.D. practices dermatology in Phoenix, AZ. William is a 1994 graduate of Northeastern Ohio University College of Medicine. William is also listed as specializing in mohs surgery / dermatologic surgery. According to Medicare claims data, William cared for 3,938 Medicare patients across 25,643 services. The services billed most often include aminolevulinic acid hcl for topical administration, 10% gel, 10 mg, destruction of precancer skin growth, 2-14 growths, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1841230976.
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
- (602) 277-1449
- Email not available
Practice Locations
2224 W NORTHERN AVE STE D300
Phoenix, AZ 85021
2121 W Indian School Rd
Phoenix, AZ 85015
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
25,643 services · 3,938 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
4,467 | More than most peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
1,065 | More than most peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
678 | More than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
660 | More than most peers in Dermatology |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | Procedure | 17311 |
302 | As often as other peers in Dermatology |
| Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm | Procedure | 13132 |
164 | More often than most peers in Dermatology |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | Procedure | 17312 |
155 | As often as other peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
140 | As often as other peers in Dermatology |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
105 | More often than most peers in Dermatology |
| Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm | Procedure | 13121 |
92 | 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 4
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 Phoenix 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Northeastern Ohio University College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1994 at Northeastern Ohio University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What kind of doctor is William T. Ko?
William T. Ko is a dermatologist (skin doctor) in Phoenix, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
What is William T. Ko's address?
William T. Ko is listed at 2224 W Northern Ave Ste D300, Phoenix, AZ 85021. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with William T. Ko?
The number on file is (602) 277-1449. Contact the office directly to confirm availability and scheduling.
NPI registry
What is William T. Ko's NPI number?
William T. Ko's National Provider Identifier is 1841230976. 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 William T. Ko train?
William T. Ko attended Northeastern Ohio University College of Medicine, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How long has William T. Ko been practicing?
William T. Ko has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What procedures does William T. Ko perform?
According to Medicare billing data, William T. Ko performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and biopsy of related skin growth, each additional growth; provides treatments such as application of light with debridement to destroy precancer skin growth and administration of chemotherapy into growth, 1-7, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has William T. Ko confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by William T. Ko. If this is you, claiming it is free.
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