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CRYSTAL MARIE GREEN
NPI 1255944997
Social Worker - Clinical in Oakland, CA

Active since August 24, 2020PECOS Enrolled
616 16TH ST, OAKLAND, CA 94612(510) 981-4100 Get Directions Write a Review

NPPES record last updated: April 14, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 25, 2022, Aug 24, 2020 (2 updates tracked since 2020).

About Crystal Marie Green NPPES

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

CRYSTAL MARIE GREEN (NPI 1255944997) is an individual clinical provider in Oakland, California, licensed in California (129633) and active in the NPI registry since August 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1255944997
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCRYSTAL MARIE GREEN
Location Address616 16TH STOakland, CA 94612-1205
Mailing Address616 16th StOakland, CA 94612-1205 · (510) 981-4100
Phone(510) 981-4100
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateAugust 24, 2020
Last NPPES UpdateApril 14, 20252 updates tracked since enumeration
NPPES CertifiedApril 14, 2025
✔ NPI 1255944997 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 · 129633
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.
616 16TH ST, Oakland, CA 94612
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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)

Crystal Marie Green is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8022507797
PECOS Enrollment IDI20251031002159
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 Crystal Green reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lifelong Medical Care
2.8 mi
Geriatric Medicine
3260 SACRAMENTO ST
Berkeley, CA 94702
  • Reassigned Medicare billing, California enrollment
  • 241 clinicians in this Medicare group
NPI 1689670002 (510) 428-4500

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 94612 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 $69.00 – $202.35
Typical copayment $0.00 (range $17.25 – $50.58)
Most-billed visit code NA
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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 18

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

MS. MARIA ANTOINETTE CULCASI LCSW
Social Worker (Clinical)
616 16TH ST, DOWNTOWN OAKLAND CLINIC
OAKLAND, CA 94612
Alameda County (510) 451-4270
KRISTEN LYNN SMOL PA-C
Physician Assistant
616 16TH ST
OAKLAND, CA 94612
Alameda County (510) 563-4300
MS. SUSAN CALLAWAY FERGUSON MD
Internal Medicine (Addiction Medicine)
616 16TH ST
OAKLAND, CA 94612
Alameda County (510) 451-4270
LIFELONG MEDICAL CARE
Clinic/Center
616 16TH ST, SUITE 1
OAKLAND, CA 94612
Alameda County (510) 451-4270
KIRSTEN FLAGG
Nurse Practitioner (Family)
616 16TH ST
OAKLAND, CA 94612
Alameda County (510) 451-1273
MATTHEW DAY L.C.S.W.
Social Worker (Clinical)
616 16TH ST
OAKLAND, CA 94612
Alameda County (510) 451-4270
MS. DONNA REIMANN PEDROZA LCSW
Social Worker (Clinical)
616 16TH ST, DOWNTOWN OAKLAND CLINIC
OAKLAND, CA 94612
Alameda County (510) 451-4270
LIFELONG MEDICAL CARE
Case Manager/Care Coordinator
616 16TH ST
OAKLAND, CA 94612
Alameda County (510) 451-4270

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 Crystal Green's NPI number?

The NPI number for Crystal Green is 1255944997. It was assigned to this individual provider in the NPPES registry on August 24, 2020.

Where is Crystal Green located?

Crystal Green practices at 616 16th St, Oakland, CA 94612. The listed phone number is (510) 981-4100.

What is Crystal Green's specialty?

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

Is Crystal Green enrolled in Medicare?

Yes. Crystal Green is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Crystal Green's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Crystal Green reassigns Medicare benefits to Lifelong Medical Care (Berkeley, 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 Crystal Green'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 Crystal Green was last updated on April 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.