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DR. SHERRI NIELSEN PSY.D.
NPI 1841695129
Psychologist - Clinical in Long Beach, CA

Active since October 28, 2014PECOS Enrolled
1539 HARBOR AVE, LONG BEACH, CA 90813(310) 702-6501 Get Directions Write a Review

NPPES record last updated: October 31, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Sherri Nielsen Psy.d. NPPES

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

DR. SHERRI NIELSEN PSY.D. (NPI 1841695129) is an individual clinical provider in Long Beach, California, licensed in California (PSY 26749) and active in the NPI registry since October 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841695129
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. SHERRI NIELSENCredential: PSY.D.
Location Address1539 HARBOR AVELong Beach, CA 90813-1322
Mailing Address953 W 18th St, #2San Pedro, CA 90731-4554 · (310) 702-6501
Phone(310) 702-6501
Sole ProprietorYes
Enumeration DateOctober 28, 2014
Last NPPES UpdateOctober 31, 2014
✔ NPI 1841695129 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in CA · PSY 26749
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
1539 HARBOR AVE, Long Beach, CA 90813
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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. Sherri Nielsen Psy.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 Sherri Nielsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mission City Community Network, Inc.
22 mi
Mental Health (Including Community Mental Health Center)
4842 HOLLYWOOD BLVD
Hollywood, CA 90027
  • Reassigned Medicare billing, California enrollment
  • 146 clinicians in this Medicare group
NPI 1710102009 (323) 644-1110

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
1,620 services99 patients
Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
83 services81 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90813 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
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.

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 Sherri Nielsen's NPI number?

The NPI number for Sherri Nielsen is 1841695129. It was assigned to this individual provider in the NPPES registry on October 28, 2014.

Where is Sherri Nielsen located?

Sherri Nielsen practices at 1539 Harbor Ave, Long Beach, CA 90813. The listed phone number is (310) 702-6501.

What is Sherri Nielsen's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Sherri Nielsen enrolled in Medicare?

Yes. Sherri Nielsen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sherri Nielsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sherri Nielsen reassigns Medicare benefits to Mission City Community Network, Inc. (Hollywood, 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 Sherri Nielsen'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 Sherri Nielsen was last updated on October 31, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.