Physician Profile
Based in Tarzana, CA, Ada M. Winkielman, MD is listed in the NPI registry under dermatopathology. According to Medicare claims data, Ada cared for 977 Medicare patients across 1,863 services. 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 pathology examination of tissue using a microscope, intermediate complexity.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
18364 CLARK ST
Tarzana, CA 91356
Within Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Autoimmune & Joints
Autopsy & Forensic
Blood & Metabolism
Blood Disorders
Cancer
Cervical & Gynecologic
Digestive
Digestive System
Endocrine
Genetics
Hormones
Immune System
Infections
Kidney
Liver
Metabolic & Routine Lab
Pregnancy & Fertility
Skin Cancer
Women's Health
Autopsy & Forensic
Blood Tests
Cytology
Cytology & Screening
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
1,863 services · 977 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
462 | As often as other peers in Dermatopathology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
154 | More often than most peers in Dermatopathology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
128 | As often as other peers in Dermatopathology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
113 | As often as other peers in Dermatopathology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
46 | As often as other peers in Dermatopathology |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
27 | Less often than most peers in Dermatopathology |
| Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm | Procedure | 11602 |
13 | Less often than most peers in Dermatopathology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
418 | More often than most peers in Dermatopathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
248 | Less often than most peers in Dermatopathology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
163 | More often than most peers in Dermatopathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Winkielman is a dermatopathology in Tarzana, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Winkielman is listed at 18364 Clark St, Tarzana, CA 91356. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (818) 345-7122. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Winkielman's National Provider Identifier is 1992798870. 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
Dr. Winkielman attended Other, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
Dr. Winkielman has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Winkielman performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of skin growth, 1-14 growths and destruction of precancer skin growth, 1 growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Winkielman. 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.