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DR. SEPER DEZFOLI M.D.
NPI 1104159383
Internal Medicine - Gastroenterology in Long Beach, CA

Active since September 07, 2009PECOS EnrolledAccepts Medicare AssignmentCLIA 05D2186396 · Certificate of Compliance
3816 WOODRUFF AVE STE 411, LONG BEACH, CA 90808(562) 485-5550 Get Directions Write a Review

NPPES record last updated: March 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 9, 2026, Apr 1, 2024, Nov 6, 2021 and 2 more (5 updates tracked since 2018).

About Dr. Seper Dezfoli M.d. NPPES

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

DR. SEPER DEZFOLI M.D. (NPI 1104159383) is an individual gastroenterology provider in Long Beach, California, licensed in California (A113069) and active in the NPI registry since September 2009. He is enrolled in Medicare PECOS, holds a CLIA Certificate of Compliance certificate valid through October 27, 2026, and is affiliated with Holland Community Hospital.

NPPES Registry Identity

NPI1104159383
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. SEPER DEZFOLICredential: M.D.
Location Address3816 WOODRUFF AVE STE 411Long Beach, CA 90808-2146
Mailing Address3816 Woodruff Ave Ste 411Long Beach, CA 90808-2146 · (562) 485-5550
Phone(562) 485-5550
Sole ProprietorYes
Medical School CMSPennsylvania State University College Of MedicineGraduated 2009
Enumeration DateSeptember 7, 2009
Last NPPES UpdateMarch 9, 20265 updates tracked since enumeration
NPPES CertifiedMarch 9, 2026
✔ NPI 1104159383 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in CA · A113069✔ Licensed in IL · 036169574
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
3816 WOODRUFF AVE STE 411, Long Beach, CA 90808
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Priority Health.Insurance ›

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

Dr. Seper Dezfoli M.d. 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 ID1658545264
PECOS Enrollment IDI20111116000856, I20260106002804
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

6

Medicare enrollment records show Seper Dezfoli reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Prohealth Partners, A Medical Group, Inc
Same address
Family Medicine
3840 WOODRUFF AVE STE 202
Long Beach, CA 90808
  • Reassigned Medicare billing, California enrollment
  • 279 clinicians in this Medicare group
NPI 1477685436 (562) 296-5528
Southern California Permanente Medical Group
5.2 mi
Health Maintenance Organization
9400 ROSECRANS AVE
Bellflower, CA 90706
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1043242555 (562) 461-3000
Seper Dezfoli, MD, Inc
22 mi
Gastroenterology
250 N ROBERTSON BLVD STE 106
Beverly Hills, CA 90211
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1649756164 (323) 800-1000
City Of Hope Medical Foundation
22 mi
Hematology & Oncology
1500 DUARTE RD
Duarte, CA 91010
  • Reassigned Medicare billing, California enrollment
  • 1,335 clinicians in this Medicare group
NPI 1871886366 (626) 256-4673
County Of Ventura
48 mi
Community/Behavioral Health
1900 E LOS ANGELES AVE STE 100
Simi Valley, CA 93065
  • Reassigned Medicare billing, California enrollment
  • 710 clinicians in this Medicare group
NPI 1013139658 (805) 577-1724
Holland Community Hospital
1,828 mi
Family Medicine
6490 BLUE STAR HWY
Saugatuck, MI 49453
  • Reassigned Medicare billing, Michigan enrollment
  • 145 clinicians in this Medicare group
NPI 1700549169 (269) 857-3208

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 05D2186396

Seper Dezfoli Laboratories · Long Beach, CA
Active · expires Oct 27, 2026
CLIA Number05D2186396
Laboratory TypePhysician Office
Certificate Effective DateOctober 28, 2024
Certificate Expiration DateOctober 27, 2026
Laboratory DirectorSeper Dezfoli
Laboratory Phone(562) 485-5550
Laboratory LocationSeper Dezfoli Laboratories3816 Woodruff Ave Ste 411, Long Beach, CA 90808
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Areas of Expertise CMS Part B claims 11

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
88 services53 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
57 services54 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
57 services43 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
55 services54 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
44 services43 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
31 services31 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Holland Community Hospital

Acute Care Hospitals · Holland, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230072
Location602 Michigan AveHolland, MI 49423 · Ottawa County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90808 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
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 3

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

ARACELI JIMENEZ FNP-C
Nurse Practitioner (Family)
3816 WOODRUFF AVE STE 411
LONG BEACH, CA 90808
Los Angeles County (562) 485-5550
HUGO CORDON HAD
Hearing Instrument Specialist
3816 WOODRUFF AVE STE 411
LONG BEACH, CA 90808
Los Angeles County (562) 606-1033
PROHEALTH PARTNERS A MEDICAL GROUP INC
Internal Medicine (Gastroenterology)
3816 WOODRUFF AVE STE 411
LONG BEACH, CA 90808
Los Angeles County (562) 257-6110

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 Seper Dezfoli's NPI number?

The NPI number for Seper Dezfoli is 1104159383. It was assigned to this individual provider in the NPPES registry on September 7, 2009.

Where is Seper Dezfoli located?

Seper Dezfoli practices at 3816 Woodruff Ave Ste 411, Long Beach, CA 90808. The listed phone number is (562) 485-5550.

What is Seper Dezfoli's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Seper Dezfoli enrolled in Medicare?

Yes. Seper Dezfoli 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 Seper Dezfoli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seper Dezfoli reassigns Medicare benefits to 6 organizations: Prohealth Partners, A Medical Group, Inc (Long Beach, CA), Southern California Permanente Medical Group (Bellflower, CA), Seper Dezfoli, MD, Inc (Beverly Hills, CA), City Of Hope Medical Foundation (Duarte, CA), County Of Ventura (Simi Valley, CA) and 1 more organization, listed in the Medicare section above. 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 Seper Dezfoli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Seper Dezfoli hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 05D2186396) is associated with this NPI, valid through October 27, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Seper Dezfoli accept?

Health plans from Priority Health list Seper Dezfoli as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Seper Dezfoli affiliated with any hospitals?

According to CMS data, Seper Dezfoli is affiliated with Holland Community Hospital.

When was this NPI record last updated?

The NPPES record for Seper Dezfoli was last updated on March 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.