Physician Profile
Karen Simpson, MD
Unclaimed ProfileAbout Dr. Simpson
Karen Simpson, MD practices dermatology in Brea, CA. Medicare claims data shows Karen provided 1,328 services to 888 patients. The services billed most often include destruction of precancer skin growth, 2-14 growths, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and destruction of precancer skin growth, 1 growth.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (714) 626-6310
- Email not available
Practice Locations
955 W IMPERIAL HWY STE 200
Brea, CA 92821
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
- Eczema
- Hair loss
- Melanoma
- Precancerous sun spot
- Psoriasis
- Rosacea
- Skin cancer
Acne and follicular disorders
- Folliculitis
- Hidradenitis suppurativa
Eczema and inflammatory skin disease
- Seborrheic dermatitis
Infections and infestations
- Cellulitis
- Foot fungus
- Herpes simplex of the skin
- Molluscum contagiosum
- Scabies
- Shingles
- Warts
Pigment, growths, and benign lesions
- Melasma
- Seborrheic keratosis
Skin cancer
- Basal cell skin cancer
- Squamous cell skin cancer
Urticaria, itch, and vascular
- Chronic itching
- Excessive sweating
- Hives
Autoimmune and connective tissue
- Vitiligo
Infections
- Ringworm
Rashes & allergy
- Poison Ivy
Skin growths
- Keloid scars
Procedures & services
Most searched procedures
- Botox
- Chemical peel
- Laser hair removal
- Microneedling
- Mole removal
- Skin cancer screening
Diagnostic procedures
- Patch testing
- Skin biopsy
Lesion treatment
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
- Incision and drainage of an abscess
Medical dermatology treatment
- Botulinum toxin treatment for excessive sweating
Cosmetic
- Acne scar treatment
- Dermal fillers
- Sclerotherapy
- Tattoo removal
Cosmetic and minor surgery
- Sun spot removal
Cosmetic dermatology
- Laser skin resurfacing
- Laser treatment of vascular lesions
Diagnostic
- Mole mapping
- Skin scraping test
General dermatology
- Biologic drug management
- Cortisone shot for cysts
Infections
- Wart Removal
Medical dermatology
- Light Therapy
Nails & hair
- Ingrown toenail removal
Skin cancer surgery
- Mohs surgery
Skin growths
- Cyst Removal
- Lipoma removal
- Skin Tag Removal
- Steroid injection for keloids
Procedures Most Often Billed to Medicare
1,328 services · 888 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
385 | As often as other peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
162 | As often as other peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
104 | As often as other peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
91 | As often as other peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
54 | As often as other peers in Dermatology |
| Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm | Procedure | 17261 |
14 | |
| Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm | Procedure | 13132 |
13 | |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
324 | As often as other 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 |
134 | As often as other 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 |
17 |
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 1
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 Brea 3
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 1991 at Other 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 CA who bill this service to Medicare most often.
Common questions
What is Dr. Simpson's specialty?
Dr. Simpson is a dermatologist (skin doctor) in Brea, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Where can I find Dr. Simpson?
Dr. Simpson is listed at 955 W Imperial Hwy Ste 200, Brea, CA 92821. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Simpson?
The number on file is (714) 626-6310. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Simpson?
Dr. Simpson's National Provider Identifier is 1376544189. 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
What is Dr. Simpson's medical education?
Dr. Simpson attended Other, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Simpson have?
Dr. Simpson has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Simpson known for?
According to Medicare billing data, Dr. Simpson performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and biopsy of related skin growth, first growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Simpson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Simpson. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.