MRS. GWENDOLYN HARVILLE WASHINGTON LCSW
NPI 1467509968
Social Worker - Clinical in Rancho Cucamonga, CA

NPI Status: Active since January 05, 2007

Contact Information

9089 BASELINE RD
SUITE 200
RANCHO CUCAMONGA, CA
ZIP 91730
Phone: (909) 210-5895
Fax: (909) 989-3932

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  • Individual
  • Female
  • Years of Experience 30
  • Social Worker
  • Clinical
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GWENDOLYN HARVILLE WASHINGTON

This page provides the complete NPI Profile along with additional information for Gwendolyn Harville Washington, a provider established in Rancho Cucamonga, California with a medical specialization in Social Worker, focusing in clinical and more than 30 years of experience. The healthcare provider is registered in the NPI registry with number 1467509968 assigned on January 2007. The practitioner's primary taxonomy code is 1041C0700X with license number LCS 22188 (CA). The provider is registered as an individual and her NPI record was last updated 12 years ago.

NPI
1467509968
Provider Name
MRS. GWENDOLYN HARVILLE WASHINGTON LCSW
Gender
Female
Entity Type
Individual
Location Address
9089 BASELINE RD SUITE 200 RANCHO CUCAMONGA, CA 91730
Location Phone
(909) 210-5895
Location Fax
(909) 989-3932
Mailing Address
7828 HAVEN AVE SUITE 212 RANCHO CUCAMONGA, CA 91730
Mailing Phone
(909) 987-1647
Mailing Fax
(909) 989-3932
Medical School Name
OTHER
Graduation Year
1996
Is Sole Proprietor?
Yes
Enumeration Date
01-05-2007
Last Update Date
09-26-2013
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A clinical social worker like Gwendolyn Harville Washington is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Social Worker Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
License No.
LCS 22188
License State
CA
Taxonomy Description
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Medicare Participation & PECOS Enrollment Status

Gwendolyn Harville Washington is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Gwendolyn Harville Washington is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 6002031093

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20140708000240

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • Eligible to Order or Refer Power Mobility Devices: No

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $0 for a new patient copayment and $18.52 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 91730 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is NA

  • Average New Patient Price $0
  • Minimum New Patient Price $59.6
  • Maximum New Patient Price $179.42
  • Average New Patient Copayment $0
  • Minimum New Patient Copayment $14.9
  • Maximum New Patient Copayment $44.85

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $74.08
  • Minimum Established Patient Price $19.37
  • Maximum Established Patient Price $146.42
  • Average Established Patient Copayment $18.52
  • Minimum Established Patient Copayment $4.84
  • Maximum Established Patient Copayment $36.6

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for MRS. GWENDOLYN HARVILLE WASHINGTON LCSW

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1467509968
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2412710018912
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 4 + 1 + 2 + 7 + 1 + 0 + 0 + 1 + 8 + 9 + 1 + 2 + 24 = 62
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 62 = 88

The NPI number 1467509968 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 10 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1609878115 THOMAS ALLEN WOODBURY D.O.
Individual
Family Medicine (Geriatric Medicine)9089 BASELINE RD SUITE 100
RANCHO CUCAMONGA, CA 91730
(909) 941-9927
1093884660MRS. MARIA GERARDA VALENTIN DE DOMENA L.C.S.W.
Individual
Social Worker (Clinical)9089 BASELINE RD STE. 200
RANCHO CUCAMONGA, CA 91730
(909) 980-3567
1356674493 BRIAN TERRY SHAW D.O.,
Individual
Family Medicine9089 BASELINE RD SUITE 100
RANCHO CUCAMONGA, CA 91730
(909) 483-0505
1891081485 LIZA M GONZALEZ D.O.
Individual
Family Medicine9089 BASELINE RD SUITE 100
RANCHO CUCAMONGA, CA 91730
(909) 483-0505
1417094277DR. GENEVIEVE B BUENAFLOR D.O.
Individual
Family Medicine9089 BASELINE RD SUITE 100
RANCHO CUCAMONGA, CA 91730
(909) 464-9675
1013983394DR. LAURI LEE ROGERS PSY.D.
Individual
Psychologist (Clinical)9089 BASELINE RD SUITE 200
RANCHO CUCAMONGA, CA 91730
(909) 980-3567
1427485762 DANIEL HESTEHAUGE P.A
Individual
Physician Assistant9089 BASELINE RD SUITE 100
RANCHO CUCAMONGA, CA 91730
(909) 483-0505
1316155310 ANGELA JO COCHRAN PA
Individual
Physician Assistant9089 BASELINE RD SUITE 100
RANCHO CUCAMONGA, CA 91730
(909) 483-0505
1700053519DR. HOLLY MILLER PSY.D.
Individual
Psychologist (Clinical Child & Adolescent)9089 BASELINE RD STE #200
RANCHO CUCAMONGA, CA 91730
(909) 980-3567
1942674924REND INTEGRATIVE INC
Organization
Psychiatry & Neurology (Child & Adolescent Psychiatry)9089 BASELINE RD SUITE 200
RANCHO CUCAMONGA, CA 91730
(909) 980-3567

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1467509968, enumerated in the NPI registry as an "individual" on January 05, 2007

The provider is located at 9089 Baseline Rd Suite 200 Rancho Cucamonga, Ca 91730 and the phone number is (909) 210-5895

The provider's speciality is Social Worker with taxonomy code 1041C0700X with a focus in Clinical

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

Medicare beneficiaries should expect a typical cost of $0 with an average copayment of $0 for new patient appointments. Established patients should expect a typical charge of $74.08 and an average copayment of 18.52. Please review your insurance plan or contact the provider directly to determine your specific costs.

This NPI record was last updated on January 05, 2007. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.