Dr. Stefan Eric Lowenstein , MD
Dermatology • Mill Valley, CA
Professional Overview & Biography Verified Profile Summary
Dr. Stefan Lowenstein, MD is a certified Dermatology practicing in Mill Valley, CA. With approximately 8 years of clinical experience since graduating from University Of California, San Francisco School Of Medicine in 2018, Dr. Lowenstein delivers high-quality medical care to the local community at 535 MILLER AVE.
Dr. Lowenstein maintains professional affiliations with Golden State Dermatology Associates, Inc., Union Square Dermatology A Professional Corporation, Aesthetic Dermatology And Cosmetic Surgery Medical Associates Inc and accepts Medicare assignment.
Frequently performed procedures and clinical services include destruction of precancer skin growth, 2-14 growths, established patient outpatient office visit, destruction of skin growth. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
535 Miller Ave
Mill Valley, CA 949412905
Medicare Profile & Education
University Of California, San Francisco School Of Medicine
2018
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Dermatology in Mill Valley, CA
Practicing in Mill Valley, CA (2182 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
17003
Destruction of precancer skin growth, 2-14 growths
|
1,029 | 237 | $15.54 | $8.82 |
|
99213
Established patient office or other outpatient visit, typically 15 minutes
|
503 | 375 | $180.67 | $108.85 |
|
17000
Destruction of skin growth
|
434 | 310 | $139.58 | $70.33 |
|
11102
Tangential biopsy of single skin lesion
|
269 | 230 | $224.29 | $126.03 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
140 | 114 | $257.60 | $151.37 |
|
99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
|
127 | 114 | $114.22 | $69.27 |
|
17110
Destruction of up to 14 skin growths
|
79 | 69 | $261.99 | $146.52 |
|
99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
69 | 69 | $235.20 | $133.49 |
|
11103
Biopsy of related skin growth, each additional growth
|
58 | 46 | $109.14 | $64.55 |
|
17311
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks
|
46 | 40 | $1355.80 | $711.32 |
|
J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
|
35 | 18 | $6.20 | $0.98 |
|
13121
Repair of wound (2.6 to 7.5 centimeters) of scalp, arms, and/or legs
|
31 | 30 | $903.51 | $507.96 |
|
13132
Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm
|
28 | 27 | $1026.76 | $345.51 |
|
99202
New patient office or other outpatient visit, typically 20 minutes
|
26 | 26 | $156.43 | $87.33 |
|
17312
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks
|
25 | 18 | $819.64 | $528.74 |
|
11603
Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm
|
24 | 23 | $593.47 | $174.12 |
|
11900
Injection into skin growth, 1-7 growths
|
21 | 18 | $120.28 | $65.83 |
|
99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
20 | 20 | $345.19 | $190.80 |
|
11104
Punch biopsy, first skin growth
|
17 | 16 | $269.52 | $162.39 |
|
11602
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm
|
12 | 12 | $521.38 | $167.34 |
Medical Specialties & State Licenses
CMS Verified: 2026-04-23NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
NUCC Taxonomy Code: 207ZD0900X
A dermatopathologist is an expert in diagnosing and monitoring diseases of the skin including infectious, immunologic, degenerative, and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings, and smears of skin lesions by means of light microscopy, electron microscopy, and fluorescence microscopy.
NUCC Taxonomy Code: 207ND0101X
The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S.
Hospital & Practice Group Affiliations
Golden State Dermatology Associates, Inc.
1104 Adams St, Saint Helena, CA 945741175
Phone: 7079670800
Union Square Dermatology A Professional Corporation
450 Sutter St, San Francisco, CA 941083915
Phone: 4153939550
Aesthetic Dermatology And Cosmetic Surgery Medical Associates Inc
535 Miller Ave, Mill Valley, CA 949412905
Phone: 4153835486
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Dermatology - MOHS-Micrographic Surgery
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 535 MILLER AVE, MILL VALLEY, CA 949412905 (Tel: 4153835475)
Registered at 535 MILLER AVE, MILL VALLEY, CA 949412905 (Tel: 4153835475)
Dermatology (License #A165056 in CA)
Registered at 2425 GEARY BLVD, SAN FRANCISCO, CA 94115 (Tel: 4158332000)
Registered at 2425 GEARY BLVD, SAN FRANCISCO, CA 941153358 (Tel: 4158332000)
NPI status registered as active in NPPES database
Registered at 2425 GEARY BLVD, SAN FRANCISCO, CA 941153358 (Tel: 4158332000)
Registered at 651 FOREST WAY, MILL VALLEY, CA 949413974 (Tel: 4153891543)
Recorded as STEFAN LOWENSTEIN, MD
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
535 Miller Ave
Mill Valley, CA 949412905
Phone: 4153835475
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