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DR. STEFFAN THAYER HAVAS M.D.
NPI 1841266707
Internal Medicine - Endocrinology, Diabetes & Metabolism in Torrance, CA

Active since February 28, 2006PECOS Enrolled
3565 DEL AMO BLVD, TORRANCE, CA 90503(310) 214-0811(310) 793-9531 Get Directions Write a Review

NPPES record last updated: January 15, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Steffan Thayer Havas M.d. NPPES

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

DR. STEFFAN THAYER HAVAS M.D. (NPI 1841266707) is an individual endocrinology, diabetes & metabolism provider in Torrance, California, licensed in California (G72099) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841266707
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. STEFFAN THAYER HAVASCredential: M.D.
Location Address3565 DEL AMO BLVDTorrance, CA 90503-1637
Mailing Address3565 Del Amo BlvdTorrance, CA 90503-1637 · (310) 214-0811 · Fax (310) 793-9531
Phone(310) 214-0811
Fax(310) 793-9531
Sole ProprietorNo
Enumeration DateFebruary 28, 2006
Last NPPES UpdateJanuary 15, 2013
✔ NPI 1841266707 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · G72099
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
3565 DEL AMO BLVD, Torrance, CA 90503
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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)

Dr. Steffan Thayer Havas 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 Steffan Havas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Healthcare Partners Affiliates Medical Group
14 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 90503 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

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

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 suppliers34 claims34 services$186.07 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.

ERIKA JOYCE KALASH D.O.
Internal Medicine
3565 DEL AMO BLVD
TORRANCE, CA 90503
Los Angeles County (310) 214-0811
DR. RICHARD ALAN YAMAMOTO M.D.
Dermatology
3565 DEL AMO BLVD, 3RD FLOOR DERMATOLOGY
TORRANCE, CA 90503
Los Angeles County (310) 214-0811
AASHINI SHAH M.D.
Hospitalist
3565 DEL AMO BLVD
TORRANCE, CA 90503
Los Angeles County (714) 443-4512
HEALTH CARE PARTNERS, INC..
Non-Pharmacy Dispensing Site
3565 DEL AMO BLVD
TORRANCE, CA 90503
Los Angeles County (310) 214-0811
MS. ADRIANA LANIZA MONTELLANO NATIVIDAD CERTIFIED OPTICIAN
Technician/Technologist (Contact Lens)
3565 DEL AMO BLVD
TORRANCE, CA 90503
Los Angeles County (310) 214-0811
NARGES JELODARI MD
Pediatrics
3565 DEL AMO BLVD
TORRANCE, CA 90503
Los Angeles County (310) 214-0811
ANITA BHAGAVATH M.D
Internal Medicine (Pulmonary Disease)
3565 DEL AMO BLVD
TORRANCE, CA 90503
Los Angeles County (702) 579-3203
ENERGY FARM INC
Pharmacist
3565 DEL AMO BLVD
TORRANCE, CA 90503
Los Angeles County (310) 370-0911

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 Steffan Havas's NPI number?

The NPI number for Steffan Havas is 1841266707. It was assigned to this individual provider in the NPPES registry on February 28, 2006.

Where is Steffan Havas located?

Steffan Havas practices at 3565 Del Amo Blvd, Torrance, CA 90503. The listed phone number is (310) 214-0811.

What is Steffan Havas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Steffan Havas enrolled in Medicare?

Yes. Steffan Havas is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Steffan Havas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Steffan Havas reassigns Medicare benefits to Healthcare Partners Affiliates Medical Group (Los Angeles, 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 Steffan Havas'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 Steffan Havas was last updated on January 15, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.