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DR. JAMES K TAM M.D.
NPI 1629215520
Internal Medicine in Long Beach, CA

Active since January 14, 2009PECOS EnrolledAccepts Medicare Assignment
2699 ATLANTIC AVE, LONG BEACH, CA 90806(562) 426-3333 Get Directions Write a Review

NPPES record last updated: September 26, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. James K Tam M.d. NPPES

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

DR. JAMES K TAM M.D. (NPI 1629215520) is an individual internal medicine provider in Long Beach, California, licensed in California (A106111) and active in the NPI registry since January 2009. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2007).

NPPES Registry Identity

NPI1629215520
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JAMES K TAMCredential: M.D.
Location Address2699 ATLANTIC AVELong Beach, CA 90806-2710
Mailing Address2699 Atlantic AveLong Beach, CA 90806-2710 · (562) 426-3333
Phone(562) 426-3333
Sole ProprietorYes
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2007
Enumeration DateJanuary 14, 2009
Last NPPES UpdateSeptember 26, 2023
✔ NPI 1629215520 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 · A106111
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.
2699 ATLANTIC AVE, Long Beach, CA 90806
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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 and accepts Medicare assignment

Dr. James K Tam 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 ID6901098680
PECOS Enrollment IDI20101013000758
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

2

Medicare enrollment records show James Tam reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
6.4 mi
Health Maintenance Organization
25825 VERMONT AVE
Harbor City, CA 90710
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1598797011 (310) 325-5111
Healthcare Partners Affiliates Medical Group
17 mi
Internal Medicine
1120 W WASHINGTON BLVD
Los Angeles, CA 90015
  • Reassigned Medicare billing, California enrollment
  • 2,052 clinicians in this Medicare group
NPI 1659312593 (213) 623-2225

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 90806 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.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
15 suppliers30 claims101 services$5.45 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers16 claims19 services$0.96 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
5 suppliers149 claims149 services$184.07 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 20

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

MELISSA A MEDELLIN FNP
Nurse Practitioner (Family)
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333
DR. JAMES NORMAN LOGAN M.D.
Internal Medicine (Critical Care Medicine)
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333
DR. SABRINA ANN HARPER MD
Internal Medicine
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333
LAURA SEZONOV PHARMD
Pharmacist (Ambulatory Care)
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 490-3096
TINA DER KITAJIMA M.D.
Internal Medicine
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333
DR. SHEILA ANN SALAMUNOVICH PHARM.D.
Pharmacist (Pharmacotherapy)
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 490-3044
MICHELE LYNN ENO M.D.
Obstetrics & Gynecology
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333
MISS JOILYN CAMYL ANDERSON
Nurse Practitioner (Family)
2699 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333

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 Tam's NPI number?

The NPI number for James Tam is 1629215520. It was assigned to this individual provider in the NPPES registry on January 14, 2009.

Where is James Tam located?

James Tam practices at 2699 Atlantic Ave, Long Beach, CA 90806. The listed phone number is (562) 426-3333.

What is James Tam's specialty?

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

Is James Tam enrolled in Medicare?

Yes. James Tam 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 James Tam's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Tam reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Harbor City, CA) and Healthcare Partners Affiliates Medical Group (Los Angeles, 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 James Tam'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 Tam was last updated on September 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.