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MS. MARGARET GRACE CORNISH LCSW
NPI 1205827722
Social Worker - Clinical in Pacific Grove, CA

Active since November 03, 2005PECOS EnrolledAccepts Medicare Assignment
716 LIGHTHOUSE AVE STE E, PACIFIC GROVE, CA 93950(831) 601-4247(831) 417-0427 Get Directions Write a Review

NPPES record last updated: January 2, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Jan 2, 2026, Dec 23, 2025, Apr 8, 2025 and 2 more (5 updates tracked since 2019).

About Ms. Margaret Grace Cornish Lcsw NPPES

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

MS. MARGARET GRACE CORNISH LCSW (NPI 1205827722) is an individual clinical provider in Pacific Grove, California, licensed in California (17146) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of Other (1988).

NPPES Registry Identity

NPI1205827722
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. MARGARET GRACE CORNISHCredential: LCSW
Location Address716 LIGHTHOUSE AVE STE EPacific Grove, CA 93950
Mailing AddressPo Box 187Monterey, CA 93942 · (831) 601-4247 · Fax (831) 417-0427
Phone(831) 601-4247
Fax(831) 417-0427
Sole ProprietorYes
Medical School CMSOtherGraduated 1988
Enumeration DateNovember 3, 2005
Last NPPES UpdateJanuary 2, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 2, 2026
✔ NPI 1205827722 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 17146
Definition
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.
716 LIGHTHOUSE AVE STE E, Pacific Grove, CA 93950
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Other Names 1

Former Name (1)Margaret G Downs

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Margaret Grace Cornish Lcsw 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 ID7517928617
PECOS Enrollment IDI20041022000300
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.

Areas of Expertise CMS Part B claims

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.
58 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93950 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
$0.00 typical visit price
range $61.69 – $184.30
Typical copayment $0.00 (range $15.42 – $46.07)
Most-billed visit code NA
Established Patient
$76.53 typical visit price
range $20.34 – $151.02
Typical copayment $19.13 (range $5.08 – $37.75)
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.

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 Margaret Cornish's NPI number?

The NPI number for Margaret Cornish is 1205827722. It was assigned to this individual provider in the NPPES registry on November 3, 2005. The provider is also known as Margaret G Downs.

Where is Margaret Cornish located?

Margaret Cornish practices at 716 Lighthouse Ave Ste E, Pacific Grove, CA 93950. The listed phone number is (831) 601-4247.

What is Margaret Cornish's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Margaret Cornish enrolled in Medicare?

Yes. Margaret Cornish 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.

When was this NPI record last updated?

The NPPES record for Margaret Cornish was last updated on January 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.