MERRYALYNN SIOSON MD
NPI 1558438457
Family Medicine in Anaheim, CA

Q: What is Merryalynn Sioson's NPI number?

The NPI number for Merryalynn Sioson is 1558438457. It was assigned to this individual provider in the NPPES registry on November 29, 2006.

Q: What is Merryalynn Sioson's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Merryalynn Sioson was last updated on December 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.

Active since November 29, 2006PECOS EnrolledAccepts Medicare Assignment

441 N LAKEVIEW AVE, ANAHEIM, CA 92807(888) 988-2800 Get Directions Write a Review

NPPES record last updated: December 1, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Merryalynn Sioson Md NPPES

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

MERRYALYNN SIOSON MD (NPI 1558438457) is an individual family medicine provider in Anaheim, California, licensed in California (A69787) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of New York Medical College (1998).

NPPES Registry Identity

NPI1558438457

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameMERRYALYNN SIOSONCredential: MD

Location Address441 N LAKEVIEW AVEAnaheim, CA 92807-3028

Mailing Address441 N Lakeview AveAnaheim, CA 92807-3028 · (888) 988-2800

Phone(888) 988-2800

Sole ProprietorNo

Medical School CMSNew York Medical CollegeGraduated 1998

Enumeration DateNovember 29, 2006

Last NPPES UpdateDecember 1, 2021

✔ NPI 1558438457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · A69787

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

441 N LAKEVIEW AVE, Anaheim, CA 92807

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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

Merryalynn Sioson Md 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 ID9931262045

PECOS Enrollment IDI20090115000779

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 Merryalynn Sioson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group

Same address

Health Maintenance Organization

441 N LAKEVIEW AVE
Anaheim, CA 92807

Reassigned Medicare billing, California enrollment
13,921 clinicians in this Medicare group

NPI 1952333460 (714) 279-4000

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 92807 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

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 20

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

DINO A. IMPERIAL DO

Family Medicine