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NADYA FRIEDMAN
NPI 1811048911
Psychiatry & Neurology - Psychiatry in Clearlake, CA

Active since January 15, 2007PECOS EnrolledAccepts Medicare Assignment
15230 LAKESHORE DR, CLEARLAKE, CA 95422(707) 995-4500 Get Directions Write a Review

NPPES record last updated: February 14, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 14, 2022, Jun 12, 2018 (2 updates tracked since 2018).

About Nadya Friedman NPPES

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

NADYA FRIEDMAN (NPI 1811048911) is an individual psychiatry provider in Clearlake, California, licensed in California (C155143) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of East Tennessee State University Quillen College Of Medicine (2005).

NPPES Registry Identity

NPI1811048911
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameNADYA FRIEDMAN
Location Address15230 LAKESHORE DRClearlake, CA 95422-8107
Mailing Address15230 Lakeshore DrClearlake, CA 95422-8107 · (707) 995-4500
Phone(707) 995-4500
Sole ProprietorNo
Medical School CMSEast Tennessee State University Quillen College Of MedicineGraduated 2005
Enumeration DateJanuary 15, 2007
Last NPPES UpdateFebruary 14, 20222 updates tracked since enumeration
NPPES CertifiedFebruary 14, 2022
✔ NPI 1811048911 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in CA · C155143✔ Licensed in NY · 241466
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
15230 LAKESHORE DR, Clearlake, CA 95422
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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

Nadya Friedman 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 ID2163508896
PECOS Enrollment IDI20180629001301
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 Nadya Friedman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Adventist Health Clearlake Hospital Inc.
1.1 mi
Critical Access
15630 18TH AVE
Clearlake, CA 95422
  • Reassigned Medicare billing, California enrollment
  • 182 clinicians in this Medicare group
NPI 1124018031 (707) 994-6486
Community Hospital Of The Monterey Peninsula
168 mi
General Acute Care Hospital
23625 HOLMAN HWY
Monterey, CA 93940
  • Reassigned Medicare billing, California enrollment
  • 245 clinicians in this Medicare group
NPI 1225285810 (831) 624-5311

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 95422 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
$176.60 typical visit price
range $58.87 – $176.60
Typical copayment $44.15 (range $14.71 – $44.15)
Most-billed visit code 99205
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
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.

AILEEN ELIZABETH KLEIN LCSW
Social Worker (Clinical)
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 995-4543
MRS. MELANIE IRENE CARUSO LVN
Licensed Vocational Nurse
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 995-4500
LAKE HEALTH SERVICES, INC.
Pharmacy (Long Term Care Pharmacy)
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 994-3141
MARIAN ROSE PENA LCSW
Social Worker (Clinical)
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 995-4500
KATRICE CHRISTINE MALISZEWSKI
Social Worker (Clinical)
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 995-4545
VERONICA HARRISON LCSW
Social Worker (Clinical)
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 995-4545
KRITHIKA UMESH PESHWE MD
Psychiatry & Neurology (Neurology)
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 995-4500
SHICHANG HAO MD
Pediatrics
15230 LAKESHORE DR
CLEARLAKE, CA 95422
Lake County (707) 995-4530

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 Nadya Friedman's NPI number?

The NPI number for Nadya Friedman is 1811048911. It was assigned to this individual provider in the NPPES registry on January 15, 2007.

Where is Nadya Friedman located?

Nadya Friedman practices at 15230 Lakeshore Dr, Clearlake, CA 95422. The listed phone number is (707) 995-4500.

What is Nadya Friedman's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Nadya Friedman enrolled in Medicare?

Yes. Nadya Friedman 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 Nadya Friedman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nadya Friedman reassigns Medicare benefits to 2 organizations: Adventist Health Clearlake Hospital Inc. (Clearlake, CA) and Community Hospital Of The Monterey Peninsula (Monterey, 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 Nadya Friedman'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 Nadya Friedman was last updated on February 14, 2022. 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.