Dr. Samuel Fred Ellison, MD

  • Mountain View, CA
  • Dermatologist
NPI1336228436
Medicare services, 2024
968
Medicare patients, 2024
255
Part D claims, 2024
559
Industry payments
$26,285
Affiliated sites
2
Practice address
525 South Dr, Mountain View, CA 94040
Practice phone
Call (415) 600-7180
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Cpmc - Davies Campus Hospital

Mountain View, California

See all 5 affiliations

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Dr. Samuel Fred Ellison is a dermatologist in Mountain View, California

Dr. Ellison practices at Cpmc - Davies Campus Hospital in Mountain View, California.

Dr. Ellison's NPI, 1336228436, was assigned on November 2, 2006. Dr. Ellison graduated from National University of Singapore FOM in 1975. Dr. Ellison holds California license A41459.

NPI and contact details
NPI enumeration date
November 2, 2006
NPI status
Active
Practice phone
(415) 600-7180
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
77
Medical school graduation
1975

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Samuel Fred Ellison practices at Cpmc - Davies Campus Hospital in Mountain View, California

Dr. Ellison's primary practice is Cpmc - Davies Campus Hospital, at 525 South Dr, Mountain View, CA 94040 in Santa Clara County. The practice phone is (415) 600-7180.

  • Cpmc - Davies Campus Hospital
    525 South Dr, Mountain View, CA 94040 · Santa Clara CountyPhone(415) 600-7180

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Samuel Fred Ellison is affiliated with 3 sites of care and 2 medical groups

Dr. Ellison's primary practice is Cpmc - Davies Campus Hospital in Mountain View, California. The medical group on file is Schweiger Dermatology Group, San Pedro. Dmand AI also links Dr. Ellison to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Ellison

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Samuel Fred Ellison's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ellison practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Cpmc - Davies Campus HospitalAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Samuel Fred Ellison is one of 1,910 dermatologists in California

Dermatology is Dr. Ellison's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Ellison is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Ellison's licenses on file in 3 states: California, Illinois and Washington.

Specialties and state licenses

  • Dermatology, CaliforniaPrimaryLicense A41459 · 1984 to 2026 · taxonomy 207N00000X
  • Illinois license1983 to 1987
  • Washington license1983 to 1987

Clinical focus

Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cancerous skin growth removal, cold sores or genital herpes, contact dermatitis, minor injury on trunk and psoriasis among the conditions Dr. Ellison treats.

Dermatologists near Dr. Ellison

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. Samuel Fred Ellison billed Medicare for 968 services in 2024

CMS data shows 968 Medicare services from Dr. Ellison across 7 procedure codes in 2024, for 255 Medicare patients. Medicare paid $54,422 for them. Every service was in an office.

Medicare services, 2024968
Medicare patients255
Paid by Medicare$54,422
Procedure codes7

Dr. Ellison's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 6022024: 48919%
Surgery
2023: 7982024: 47940%
Drugs given in the office
2023: 302024: 0100%

Dr. Ellison compared with the California median for dermatologists, 2024

  • Dr. Ellison
  • California median
Medicare services
968vs 1,75045% below
Medicare patients
255vs 37732% below
Part D claims
465vs 36727% above

Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.

Dr. Ellison'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.

See all procedures by Dr. Ellison

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Samuel Fred Ellison treated 255 Medicare patients in 2024, average age 76

CMS counts 255 Medicare patients who saw Dr. Ellison in 2024. The largest group is 65 to 74, with 109 patients. 73% of them have high cholesterol, and 67% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Ellison's median patient age at 65, with 32% women.

Medicare patients, 2024255
Average age76
Average risk score1.02
Also on Medicaid16%

Dr. Ellison's Medicare patients by age, 2024

Dr. Ellison's Medicare patients by sex, 2024

  • Women8031%
  • Men17569%

Chronic conditions among Dr. Ellison's Medicare patients, 2024

  1. High cholesterol73%
  2. High blood pressure67%
  3. Arthritis38%
  4. Diabetes23%
  5. Ischemic heart disease20%
  6. Cancer18%
  7. Chronic kidney disease18%
  8. Atrial fibrillation16%

Share of Medicare patients with each condition. A patient can have several.

Dr. Ellison's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women32%
  • Men58%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Samuel Fred Ellison wrote 559 Medicare Part D claims in 2024

In 2024, Dr. Ellison wrote 559 Medicare Part D claims for 183 patients. 99% of them were for generic drugs. CMS names the drug for 465 of them, across 11 drugs with 11 or more claims each, at $11,175 in total drug cost. In 2023, CMS named 519 claims across 14 drugs.

Part D claims, 2024559
Drugs named by CMS11
Total drug cost$11,175
Part D patients183

Dr. Ellison's Part D claims by kind of drug, 2024

  • Generic551 claims99%
  • Brand-name and other8 claims1%

Dr. Ellison'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. Ellison's Part D claims, 2024

  • Antibiotics7%41 of 559 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: 5192024: 46510%

Drugs named by CMS: 11 in 2024, 14 in 2023.

See all prescribing by Dr. Ellison

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

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Dr. Samuel Fred Ellison received $26,285 in industry payments from 2016 to 2024

CMS Open Payments shows 957 general payments to Dr. Ellison from 37 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 98% of the total. Pfizer Inc. paid the most, $2,936.

General payments to Dr. Ellison by program year, 2016 to 2024

General payments to Dr. Ellison by kind, 2016 to 2024

$26.3Kin total
  • Food and beverage$25,67298%
  • Education$3761%
  • Speaker and faculty fees$1371%
  • Consulting fees$1000%

Companies that paid Dr. Ellison the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Ellison

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Samuel Fred Ellison graduated from National University of Singapore FOM

Dr. Ellison graduated from National University of Singapore FOM in 1975.

  1. Medical schoolNational University of Singapore FOM
  2. Board certified in dermatologyAmerican Board of Dermatology

Source: Dmand AI Professional Profile Data

Dr. Samuel Fred Ellison accepts plans from 15 insurance carriers

Dr. Ellison is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • Regence Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Ellison accepts, by number of carriers

  1. Medicare10
  2. PPO9
  3. HMO6
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Samuel Fred Ellison's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Samuel Fred Ellison

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. Samuel Fred Ellison's NPI number?

Dr. Samuel Fred Ellison's NPI number is 1336228436. It was assigned on November 2, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Samuel Fred Ellison?

Dr. Samuel Fred Ellison is a dermatologist in Mountain View, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).

Where does Dr. Samuel Fred Ellison practice?

Dr. Ellison practices at 525 South Dr, Mountain View, CA 94040. Dr. Ellison's primary practice is Cpmc - Davies Campus Hospital in Mountain View, California. Dmand AI also links Dr. Ellison to 2 group practices and clinics and 1 medical group.

What is Dr. Samuel Fred Ellison's office phone number?

The practice phone on file for Dr. Ellison is (415) 600-7180.

What is Dr. Samuel Fred Ellison's medical license number?

Dr. Ellison holds California license A41459, one of the licenses on file in 3 states.

Which states has Dr. Samuel Fred Ellison been licensed in?

Dmand AI has state licenses on file for Dr. Ellison in California (1984 to 2026), Illinois (1983 to 1987) and Washington (1983 to 1987).

What medical group is Dr. Samuel Fred Ellison part of?

Dr. Ellison is linked to Schweiger Dermatology Group, San Pedro. Dmand AI links Dr. Ellison to 1 more medical group.

Does Dr. Samuel Fred Ellison accept Medicare?

Yes. CMS data shows Dr. Ellison billed Medicare for 968 services in 2024.

How many Medicare patients does Dr. Samuel Fred Ellison see?

CMS counts 255 Medicare patients who saw Dr. Ellison in 2024, with an average age of 76.

Is Dr. Samuel Fred Ellison board certified?

Yes. Dr. Ellison is board certified in dermatology by the American Board of Dermatology.

Show 6 more questionsShow fewer questions

What services does Dr. Samuel Fred Ellison bill to Medicare?

In 2024, Dr. Ellison's most billed Medicare services were office visit, established patient (99213), surgery: skin and soft tissue (17003) and surgery: skin and soft tissue (17000).

Where did Dr. Samuel Fred Ellison go to medical school?

Dr. Ellison graduated from National University of Singapore FOM in 1975.

What drugs does Dr. Samuel Fred Ellison prescribe most?

In 2024 Medicare Part D data, Dr. Ellison's most prescribed drugs by claims were Triamcinolone Acetonide, Ketoconazole and Fluocinonide.

Has Dr. Samuel Fred Ellison received payments from drug or device companies?

CMS Open Payments shows $26,285 in general payments to Dr. Ellison from 37 companies from 2016 to 2024. The largest total came from Pfizer Inc.

How long has Dr. Samuel Fred Ellison been practicing?

Dr. Ellison graduated from medical school in 1975, 51 years ago.

What insurance does Dr. Samuel Fred Ellison accept?

Dr. Ellison is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

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