Dr. Stefan Eric Lowenstein, MD
- Medicare services, 2024
- 2,993
- Medicare patients, 2024
- 672
- Part D claims, 2024
- 550
- Publications
- 9
- MIPS score, 2024
- 100
- Practice address
- 80 Grand Ave, Oakland, CA 94612
- Practice phone
- Call (510) 451-1875
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Webster Surgery Center
Oakland, California
Find Dr. Lowenstein's professional email, personal email and mobile number
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Dr. Stefan Eric Lowenstein is a dermatologist in Oakland, California
Dr. Lowenstein practices at Webster Surgery Center in Oakland, California.
Dr. Lowenstein's NPI, 1245728807, was assigned on April 28, 2018. Dr. Lowenstein graduated from University of California, San Francisco School of Medicine in 2018. Dr. Lowenstein holds California license A165056.
- NPI
- 1245728807NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729417811
- NPI enumeration date
- April 28, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 451-1875
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stefan Eric Lowenstein practices at Webster Surgery Center in Oakland, California
Dr. Lowenstein's primary practice is Webster Surgery Center, at 80 Grand Ave, Oakland, CA 94612 in Alameda County. The practice phone is (510) 451-1875.
- Webster Surgery Center80 Grand Ave, Oakland, CA 94612 · Alameda CountyPhone(510) 451-1875
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stefan Eric Lowenstein is affiliated with 4 sites of care and 4 medical groups
Dr. Lowenstein's primary practice is Webster Surgery Center in Oakland, California. The medical group on file is Golden State Dermatology. Dmand AI also links Dr. Lowenstein to 3 more group practices and clinics and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stefan Eric Lowenstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lowenstein practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Webster Surgery Center | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stefan Eric Lowenstein is one of 1,910 dermatologists in California
Dermatology is Dr. Lowenstein's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Lowenstein is licensed in California.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
Dermatologists near Dr. Lowenstein
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stefan Eric Lowenstein billed Medicare for 2,993 services in 2024
CMS data shows 2,993 Medicare services from Dr. Lowenstein across 20 procedure codes in 2024, for 672 Medicare patients. Medicare paid $202,429 for them. Every service was in an office.
Dr. Lowenstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2,3012024: 2,07310%
- Office and hospital visits
- 2023: 8292024: 8857%
- Drugs given in the office
- 2023: 1382024: 3575%
Dr. Lowenstein compared with the California median for dermatologists, 2024
- Dr. Lowenstein
- California median
- Medicare services
- 2,993vs 1,75071% above
- Medicare patients
- 672vs 37778% above
- Part D claims
- 450vs 36723% above
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Lowenstein's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lowenstein and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stefan Eric Lowenstein treated 672 Medicare patients in 2024, average age 77
CMS counts 672 Medicare patients who saw Dr. Lowenstein in 2024. The largest group is 75 to 84, with 282 patients. 73% of them have high cholesterol, and 55% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lowenstein's median patient age at 58, with 44% women.
Dr. Lowenstein's Medicare patients by age, 2024
Dr. Lowenstein's Medicare patients by sex, 2024
- Women36755%
- Men30545%
Chronic conditions among Dr. Lowenstein's Medicare patients, 2024
- High cholesterol73%
- High blood pressure55%
- Arthritis40%
- Ischemic heart disease21%
- Anxiety19%
- Osteoporosis19%
- Mood disorders17%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lowenstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women44%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stefan Eric Lowenstein wrote 550 Medicare Part D claims in 2024
In 2024, Dr. Lowenstein wrote 550 Medicare Part D claims for 273 patients. 97% of them were for generic drugs. CMS names the drug for 450 of them, across 14 drugs with 11 or more claims each, at $10,831 in total drug cost. In 2023, CMS named 292 claims across 12 drugs.
Dr. Lowenstein's Part D claims by kind of drug, 2024
- Generic532 claims97%
- Brand-name18 claims3%
Dr. Lowenstein's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Lowenstein's Part D claims, 2024
- Antibiotics12%65 of 550 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2922024: 45054%
Drugs named by CMS: 14 in 2024, 12 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Stefan Eric Lowenstein scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Lowenstein for performance year 2024, reported as part of a group. Dr. Lowenstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 1,742 procedures of removal of skin lesions by Dr. Lowenstein, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Lowenstein's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Lowenstein ranks in Medicare procedure volume
- Removal of skin lesions
- 97th percentile1,742 procedures
- Skin biopsy
- 97th percentile692 procedures
- Removal of skin cancer
- 44th percentile313 procedures
- Melanoma (skin cancer) excision
- 95th percentile133 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stefan Eric Lowenstein has 9 publications on record
Dmand AI links 9 papers to Dr. Lowenstein, published from 2015 to 2022. 2018 was the busiest year, with 2. The most frequent topics are Organ Transplantation, Skin Neoplasms and Carcinoma, Squamous Cell. Dr. Lowenstein's most frequent co-authors are Kristin P. Bibee, MD, PhD, Anokhi Jambusaria-Pahlajani, MD and Clark C. Otley, MD.
Dr. Lowenstein's papers by year, 2015 to 2022
Topics Dr. Lowenstein writes about most
- Organ Transplantation
- Skin Neoplasms
- Carcinoma, Squamous Cell
- Early Detection of Cancer
Dr. Lowenstein's most frequent co-authors
- Kristin P. Bibee, MD, PhD2 shared papers
- Anokhi Jambusaria-Pahlajani, MD2 shared papers
- Clark C. Otley, MD2 shared papers
Recent publications by Dr. Lowenstein
See who Dr. Lowenstein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lowenstein works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stefan Eric Lowenstein received $5,722 in industry payments from 2022 to 2025
CMS Open Payments shows 262 general payments to Dr. Lowenstein from 22 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 99% of the total. LEO Pharma Inc. paid the most, $1,830.
General payments to Dr. Lowenstein by program year, 2022 to 2025
General payments to Dr. Lowenstein by kind, 2022 to 2025
- Food and beverage$5,69199%
- Education$311%
Companies that paid Dr. Lowenstein the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stefan Eric Lowenstein graduated from University of California, San Francisco School of Medicine
Dr. Lowenstein graduated from University of California, San Francisco School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stefan Eric Lowenstein's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stefan Eric Lowenstein
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stefan Eric Lowenstein's NPI number?
Dr. Stefan Eric Lowenstein's NPI number is 1245728807. It was assigned on April 28, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Stefan Eric Lowenstein?
Dr. Stefan Eric Lowenstein is a dermatologist in Oakland, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Stefan Eric Lowenstein practice?
Dr. Lowenstein practices at 80 Grand Ave, Oakland, CA 94612. Dr. Lowenstein's primary practice is Webster Surgery Center in Oakland, California. Dmand AI also links Dr. Lowenstein to 3 group practices and clinics and 3 medical groups.
What is Dr. Stefan Eric Lowenstein's office phone number?
The practice phone on file for Dr. Lowenstein is (510) 451-1875.
What is Dr. Stefan Eric Lowenstein's medical license number?
Dr. Lowenstein holds California license A165056.
What medical group is Dr. Stefan Eric Lowenstein part of?
Dr. Lowenstein is linked to Golden State Dermatology. Dmand AI links Dr. Lowenstein to 3 more medical groups.
Does Dr. Stefan Eric Lowenstein accept Medicare?
Yes. CMS data shows Dr. Lowenstein billed Medicare for 2,993 services in 2024, and Dr. Lowenstein accepts Medicare assignment.
What is Dr. Stefan Eric Lowenstein's MIPS score?
Dr. Lowenstein's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Stefan Eric Lowenstein see?
CMS counts 672 Medicare patients who saw Dr. Lowenstein in 2024, with an average age of 77.
What services does Dr. Stefan Eric Lowenstein bill to Medicare?
In 2024, Dr. Lowenstein's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
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Where did Dr. Stefan Eric Lowenstein go to medical school?
Dr. Lowenstein graduated from University of California, San Francisco School of Medicine in 2018.
What drugs does Dr. Stefan Eric Lowenstein prescribe most?
In 2024 Medicare Part D data, Dr. Lowenstein's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Doxycycline Hyclate.
Has Dr. Stefan Eric Lowenstein received payments from drug or device companies?
CMS Open Payments shows $5,722 in general payments to Dr. Lowenstein from 22 companies from 2022 to 2025. The largest total came from LEO Pharma Inc.
How long has Dr. Stefan Eric Lowenstein been practicing?
Dr. Lowenstein graduated from medical school in 2018, 8 years ago.
Does Dr. Stefan Eric Lowenstein do research?
Dmand AI links 9 publications to Dr. Lowenstein, published from 2015 to 2022.
Who does Dr. Stefan Eric Lowenstein publish with?
Dr. Lowenstein's most frequent co-authors are Kristin P. Bibee, MD, PhD (2 shared papers), Anokhi Jambusaria-Pahlajani, MD (2 shared papers) and Clark C. Otley, MD (2 shared papers).
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