Physician Profile
Marlys S. Fassett, MD PHD
Unclaimed ProfileAbout Dr. Fassett
Marlys S. Fassett, MD PHD is a healthcare provider in San Francisco, CA specializing in dermatology. Marlys trained at Harvard Medical School, graduating in 2011. Medicare claims data shows Marlys provided 421 services to 285 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 established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1972898799.
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
- (415) 353-7800
- Email not available
Practice Locations
1701 DIVISADERO ST FL 3 UCSF DERMATOLOGY
San Francisco, CA 94115
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
421 services · 285 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
114 | Less often than most peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
61 | Less often than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
37 | Less often than most peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
26 | 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 |
80 | Less 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 |
72 | 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 |
19 | 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 |
12 | Less 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 San Francisco 5
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Harvard Medical School 7
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. Fassett's specialty?
Dr. Fassett is a dermatologist (skin doctor) in San Francisco, 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. Fassett?
Dr. Fassett is listed at 1701 Divisadero St Fl 3 Ucsf Dermatology, San Francisco, CA 94115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Fassett?
The number on file is (415) 353-7800. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Fassett?
Dr. Fassett's National Provider Identifier is 1972898799. 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. Fassett's medical education?
Dr. Fassett attended Harvard Medical School, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Fassett have?
Dr. Fassett has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Fassett known for?
According to Medicare billing data, Dr. Fassett 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. Fassett's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fassett. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.