New York, New York
Documents care for skin of color, CCCA, traction alopecia, pseudofolliculitis (razor bumps) on its own website.
Quoted from sinyderm.com, checked Nov 4, 2026. Follow each link to read it in context.
…Olayinka has particular expertise in hair and scalp disorders, acne, atopic dermatitis (eczema), skin of color dermatology, and cosmetic dermatology.…Source: /provider/feed/
……ely affect patients with skin of color, including pigmentary disorders such as post-inflammatory hyperpigmentation and melasma, central centrifugal cicatricial alopecia (CCCA), traction alopecia, keloids, pseudofolliculitis barbae, and other conditions that require specialized diagnostic and treatme……Source: /provider/feed/
……ng pigmentary disorders such as post-inflammatory hyperpigmentation and melasma, central centrifugal cicatricial alopecia (CCCA), traction alopecia, keloids, pseudofolliculitis barbae, and other conditions that require specialized diagnostic and treatment approaches.……Source: /provider/feed/
……as post-inflammatory hyperpigmentation and melasma, central centrifugal cicatricial alopecia (CCCA), traction alopecia, keloids, pseudofolliculitis barbae, and other conditions that require specialized diagnostic and treatment approaches.……Source: /provider/feed/
…Her clinical interests include acne, rosacea, hair loss, eczema, psoriasis, warts, keloids, skin cancer detection and prevention, and comprehensive skin examinations.…Source: /provider/feed/
……conditions that disproportionately affect patients with skin of color, including pigmentary disorders such as post-inflammatory hyperpigmentation and melasma, central centrifugal cicatricial alopecia (CCCA), traction alopecia, keloids, pseudofolliculitis barbae, and other conditions that require spe……Source: /provider/feed/
……portionately affect patients with skin of color, including pigmentary disorders such as post-inflammatory hyperpigmentation and melasma, central centrifugal cicatricial alopecia (CCCA), traction alopecia, keloids, pseudofolliculitis barbae, and other conditions that require specialized diagnostic an……Source: /provider/feed/
From the federal NPI registry (CMS), matched by street address and phone. Confirm who you'll see when you book.
| Provider | Credential | Specialty | NPI | License |
|---|---|---|---|---|
| Costner Mckenzie | MD | Dermatology | 1003361171 | NY 323540 |
New York, New York
(929) 455-2600
Black dermatologist, in the practice's own words
Brooklyn, New York
(718) 623-2783
Black dermatologist, in the practice's own words
New York, New York
(212) 627-1004
MelaninDerm is a directory, not a medical provider. This page describes what SINY Dermatology publishes about its own care and what public records show; it isn't an endorsement or medical advice.