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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SEAN FISCHER MD
NPI 1851887384
General Practice in Long Beach, CA

Active since July 09, 2018PECOS EnrolledAccepts Medicare Assignment
3440 ATLANTIC AVE STE 2, LONG BEACH, CA 90807(565) 595-6961 Get Directions Write a Review

NPPES record last updated: August 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 28, 2026, Dec 23, 2021, Jul 9, 2018 (3 updates tracked since 2018).

About Sean Fischer Md NPPES

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

SEAN FISCHER MD (NPI 1851887384) is an individual general practice provider in Long Beach, California, licensed in California (A153516) and active in the NPI registry since July 2018. He is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (2016).

NPPES Registry Identity

NPI1851887384
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameSEAN FISCHERCredential: MD
Location Address3440 ATLANTIC AVE STE 2Long Beach, CA 90807-4568
Mailing Address3440 Atlantic Ave Ste 2Long Beach, CA 90807-4568 · (565) 595-6961
Phone(565) 595-6961
Sole ProprietorYes
Medical School CMSDuke University School Of MedicineGraduated 2016
Enumeration DateJuly 9, 2018
Last NPPES UpdateAugust 28, 20263 updates tracked since enumeration
NPPES CertifiedAugust 28, 2026
✔ NPI 1851887384 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in CA · A153516
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
Also ListedSurgeryTaxonomy 208600000X · License A153516 (CA)
3440 ATLANTIC AVE STE 2, Long Beach, CA 90807
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sean Fischer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7012247083
PECOS Enrollment IDI20190918002119
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 Reassignments

3

Medicare enrollment records show Sean Fischer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Anaheim Urgent Care, Inc
3.0 mi
Urgent Care
117 E 8TH ST
Long Beach, CA 90813
  • Reassigned Medicare billing, California enrollment
  • 115 clinicians in this Medicare group
NPI 1487383030 (562) 284-2600
Wound Masters Medical Group Inc
35 mi
Surgery
1131 W 6TH ST STE 250
Ontario, CA 91762
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
NPI 1376063461 (833) 362-7837
Exer Medical Corporation
37 mi
Urgent Care
26777 AGOURA RD STE B4
Calabasas, CA 91302
  • Reassigned Medicare billing, California enrollment
  • 256 clinicians in this Medicare group
NPI 1588901532 (818) 880-2225

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 2

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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
28 services28 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.
16 services16 patients

Referred Medical Equipment & Supplies CMS DME claims 12

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Collagen based wound filler, dry form, sterile, per gram of collagen A6010
DME-Medical/Surgical Supplies · category DA023N
1 supplier167 claims4,740 services$30.10 avg. paid by Medicare
Alginate or other fiber gelling dressing, wound cover, sterile, pad size 16 sq. in. or less, each dressing A6196
DME-Medical/Surgical Supplies · category DA023N
1 supplier93 claims2,952 services$7.15 avg. paid by Medicare
Alginate or other fiber gelling dressing, wound cover, sterile, pad size more than 16 sq. in. but less than or equal to 48 sq. in., each dressing A6197
DME-Medical/Surgical Supplies · category DA023N
1 supplier11 claims285 services$15.93 avg. paid by Medicare
Foam dressing, wound cover, sterile, pad size 16 sq. in. or less, with any size adhesive border, each dressing A6212
DME-Medical/Surgical Supplies · category DA023N
1 supplier133 claims1,614 services$9.44 avg. paid by Medicare
Gauze, non-impregnated, sterile, pad size 16 sq. in. or less, with any size adhesive border, each dressing A6219
DME-Medical/Surgical Supplies · category DA023N
1 supplier53 claims1,260 services$0.93 avg. paid by Medicare
Gauze, impregnated with other than water, normal saline, or hydrogel, sterile, pad size 16 sq. in. or less, without adhesive border, each dressing A6222
DME-Medical/Surgical Supplies · category DA023N
1 supplier73 claims2,160 services$2.07 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

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

DR. MAGED ZAKY NESSIM D.D.S.,INS
Dentist
3440 ATLANTIC AVE STE 2
LONG BEACH, CA 90807
Los Angeles County (562) 424-0724
MAGED ZAKY NESSIM
Dentist (General Practice)
3440 ATLANTIC AVE STE 2
LONG BEACH, CA 90807
Los Angeles County (562) 424-0724

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 Sean Fischer's NPI number?

The NPI number for Sean Fischer is 1851887384. It was assigned to this individual provider in the NPPES registry on July 9, 2018.

Where is Sean Fischer located?

Sean Fischer practices at 3440 Atlantic Ave Ste 2, Long Beach, CA 90807. The listed phone number is (565) 595-6961.

What is Sean Fischer's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Sean Fischer enrolled in Medicare?

Yes. Sean Fischer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Sean Fischer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Fischer reassigns Medicare benefits to 3 organizations: Anaheim Urgent Care, Inc (Long Beach, CA), Wound Masters Medical Group Inc (Ontario, CA) and Exer Medical Corporation (Calabasas, CA). Each 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 Sean Fischer'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 Sean Fischer was last updated on August 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.