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DR. SIMON BAEK M.D.
NPI 1821316209
Internal Medicine in La Habra, CA

Active since May 11, 2010PECOS EnrolledAccepts Medicare Assignment
2151 W. TOLEDO PLACE, LA HABRA, CA 90631(562) 690-5502 Get Directions Write a Review

NPPES record last updated: November 18, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Simon Baek M.d. NPPES

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

DR. SIMON BAEK M.D. (NPI 1821316209) is an individual internal medicine provider in La Habra, California, licensed in California (G077818) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (1992).

NPPES Registry Identity

NPI1821316209
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. SIMON BAEKCredential: M.D.
Location Address2151 W. TOLEDO PLACELa Habra, CA 90631
Mailing Address2151 W Toledo PlLa Habra, CA 90631-5080 · (562) 690-5502
Phone(562) 690-5502
Sole ProprietorYes
Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 1992
Enumeration DateMay 11, 2010
Last NPPES UpdateNovember 18, 2021
NPPES CertifiedNovember 18, 2021
✔ NPI 1821316209 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 · G077818
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.
2151 W. TOLEDO PLACE, La Habra, CA 90631
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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. Simon Baek 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 ID6305008194
PECOS Enrollment IDI20120423000771
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 Simon Baek reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
14 mi
Clinical Medical Laboratory
13000 PEYTON DR
Chino Hills, CA 91709
  • Reassigned Medicare billing, California enrollment
  • 5,228 clinicians in this Medicare group
NPI 1396287082 (888) 750-0036

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 90631 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 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$14.18 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims11 services$63.04 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Simon Baek's NPI number?

The NPI number for Simon Baek is 1821316209. It was assigned to this individual provider in the NPPES registry on May 11, 2010.

Where is Simon Baek located?

Simon Baek practices at 2151 W. Toledo Place, La Habra, CA 90631. The listed phone number is (562) 690-5502.

What is Simon Baek's specialty?

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

Is Simon Baek enrolled in Medicare?

Yes. Simon Baek 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 organization bills Medicare for Simon Baek's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Simon Baek reassigns Medicare benefits to Southern California Permanente Medical Group (Chino Hills, 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 Simon Baek'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 Simon Baek was last updated on November 18, 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.