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DR. SAMUEL FRED ELLISON MD
NPI 1336228436
Dermatology in San Francisco, CA

Active since November 02, 2006PECOS Enrolled
2001 UNION ST, SUITE 520, SAN FRANCISCO, CA 94123(415) 922-3344(415) 921-7759 Get Directions Write a Review

NPPES record last updated: March 11, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Samuel Fred Ellison Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SAMUEL FRED ELLISON MD (NPI 1336228436) is an individual dermatology provider in San Francisco, California, licensed in California (A41459) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1336228436
Entity TypeIndividualMale
Primary Taxonomy207N00000X
Provider Legal NameDR. SAMUEL FRED ELLISONCredential: MD
Location Address2001 UNION ST, SUITE 520San Francisco, CA 94123-4114
Mailing Address2001 Union St, Suite 520San Francisco, CA 94123-4114 · (415) 922-3344 · Fax (415) 921-7759
Phone(415) 922-3344
Fax(415) 921-7759
Sole ProprietorNo
Enumeration DateNovember 2, 2006
Last NPPES UpdateMarch 11, 2024
NPPES CertifiedMarch 11, 2024
✔ NPI 1336228436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in CA · A41459
Definition
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.
2001 UNION ST, San Francisco, CA 94123
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Secondary Practice Locations 2

Location 145 Castro St Ste 332San Francisco, CA 94114-1019 · Phone (415) 861-2600 · Fax (415) 861-8627
Location 22555 Ocean Ave Ste 203San Francisco, CA 94132-1645 · Phone (415) 921-3322 · Fax (415) 333-8296

Other Identifiers 1

OtherZZZ28290ZCA · Medicare Group

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Samuel Fred Ellison Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Samuel Ellison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Csi Medical Group
363 mi
MOHS-Micrographic Surgery
1360 W 6TH ST STE 370
San Pedro, CA 90732
  • Reassigned Medicare billing, California enrollment
  • 179 clinicians in this Medicare group
NPI 1871909804 (310) 519-8890

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
426 services221 patients
Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
291 services69 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
111 services88 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
63 services63 patients
Destruction of skin growth, 1-14 growths 17110
"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.
44 services32 patients
Punch biopsy, first skin growth 11104
A punch biopsy is a procedure where a small, circular tool is used to remove a sample of skin tissue. This is usually done to test a skin growth for potential issues. You may feel a pinch, but discomfort is minimal. The area heals quickly.
19 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94123 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MANA JAMALI DMD
Dentist (Orthodontics and Dentofacial Orthopedics)
2001 UNION ST, #690
SAN FRANCISCO, CA 94123
San Francisco County (415) 921-9292
PORIYA DOKHANCHI, DDS, APC
Dentist (General Practice)
2001 UNION ST, #690
SAN FRANCISCO, CA 94123
San Francisco County (415) 921-9210
DR. DAVID RAMIREZ DDS
Dentist (General Practice)
2001 UNION ST, SUITE 430
SAN FRANCISCO, CA 94123
San Francisco County (415) 921-2700
DR. RICHARD ASHWORTH DUFF D.C.
Chiropractor
2001 UNION ST, SUITE # 105
SAN FRANCISCO, CA 94123
San Francisco County (415) 563-0603
DR. ANTHONY ROGER MANISCALCO D.D.S.
Dentist (General Practice)
2001 UNION ST, SUITE 370
SAN FRANCISCO, CA 94123
San Francisco County (415) 567-0997
JOHANNA ACHURY-PEARSON JOHANNA ACHURY DDS
Dentist (General Practice)
2001 UNION ST, SUITE 664
SAN FRANCISCO, CA 94123
San Francisco County (415) 347-8995
DR. DEREK STEVEN PENN D.D.S.
Dentist (General Practice)
2001 UNION ST, 345
SAN FRANCISCO, CA 94123
San Francisco County (415) 563-1511
ALEXANDER CHUKREEFF
Dentist (General Practice)
2001 UNION ST, SUITE 500
SAN FRANCISCO, CA 94123
San Francisco County (415) 563-8123

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Samuel Ellison's NPI number?

The NPI number for Samuel Ellison is 1336228436. It was assigned to this individual provider in the NPPES registry on November 2, 2006.

Where is Samuel Ellison located?

Samuel Ellison practices at 2001 Union St Suite 520, San Francisco, CA 94123. The listed phone number is (415) 922-3344.

What is Samuel Ellison's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Samuel Ellison enrolled in Medicare?

Yes. Samuel Ellison is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Samuel Ellison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Samuel Ellison reassigns Medicare benefits to Csi Medical Group (San Pedro, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Samuel Ellison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Samuel Ellison was last updated on March 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.