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JAMES SPERBER M.D.
NPI 1518922236
Internal Medicine in San Clemente, CA

Active since April 18, 2006PECOS Enrolled
638 CAMINO DE LOS MARES, SUITE D4, SAN CLEMENTE, CA 92673(949) 542-8865(949) 276-2367 Get Directions Write a Review

NPPES record last updated: November 1, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 1, 2021, Mar 3, 2020 (2 updates tracked since 2020).

About James Sperber M.d. NPPES

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

JAMES SPERBER M.D. (NPI 1518922236) is an individual internal medicine provider in San Clemente, California, licensed in California (G50180) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1518922236
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJAMES SPERBERCredential: M.D.
Location Address638 CAMINO DE LOS MARES, SUITE D4San Clemente, CA 92673
Mailing Address638 Camino De Los Mares, Suite D4San Clemente, CA 92673 · (949) 542-8865 · Fax (949) 276-2367
Phone(949) 542-8865
Fax(949) 276-2367
Sole ProprietorNo
Enumeration DateApril 18, 2006
Last NPPES UpdateNovember 1, 20212 updates tracked since enumeration
NPPES CertifiedNovember 1, 2021
✔ NPI 1518922236 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G50180
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
638 CAMINO DE LOS MARES, San Clemente, CA 92673
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James Sperber M.d. 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 James Sperber reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Memorialcare Medical Foundation
25 mi
Clinic/Center
17360 BROOKHURST ST
Fountain Valley, CA 92708
  • Reassigned Medicare billing, California enrollment
  • 948 clinicians in this Medicare group
NPI 1205167350 (877) 696-3622

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92673 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 18

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

KATARZYNA ANNA HUDSON NP
Nurse Practitioner (Family)
638 CAMINO DE LOS MARES
SAN CLEMENTE, CA 92673
Orange County (714) 348-6790
MRS. VICTORIA LYNN WHALEN APRN, NP-C
Nurse Practitioner (Family)
638 CAMINO DE LOS MARES
SAN CLEMENTE, CA 92673
Orange County (866) 389-2727
SONIA GORDON LUCKEY DNP, APRN
Nurse Practitioner (Psychiatric/Mental Health)
638 CAMINO DE LOS MARES
SAN CLEMENTE, CA 92673
Orange County (949) 494-8426
DR. MI-JIN LIM O.D.
Optometrist
638 CAMINO DE LOS MARES, A120
SAN CLEMENTE, CA 92673
Orange County (949) 493-2269
VICTORIA DEANGELO
Pharmacist
638 CAMINO DE LOS MARES
SAN CLEMENTE, CA 92673
Orange County (949) 487-9791
HOME SLEEP PARTNERS
Clinical Medical Laboratory
638 CAMINO DE LOS MARES, SUITE H130-600
SAN CLEMENTE, CA 92673
Orange County (949) 257-7151
SAMEY ABDULRUB PHARMD
Pharmacist
638 CAMINO DE LOS MARES
SAN CLEMENTE, CA 92673
Orange County (949) 487-9791
JEAN M LIM OPTOMETRY, INC
Optometrist
638 CAMINO DE LOS MARES, A120
SAN CLEMENTE, CA 92673
Orange County (949) 493-2269

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 James Sperber's NPI number?

The NPI number for James Sperber is 1518922236. It was assigned to this individual provider in the NPPES registry on April 18, 2006.

Where is James Sperber located?

James Sperber practices at 638 Camino De Los Mares Suite D4, San Clemente, CA 92673. The listed phone number is (949) 542-8865.

What is James Sperber's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is James Sperber enrolled in Medicare?

Yes. James Sperber is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for James Sperber's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Sperber reassigns Medicare benefits to Memorialcare Medical Foundation (Fountain Valley, 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 James Sperber'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 James Sperber was last updated on November 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.