Ringwood Dialysis LLC

Primary specialty

End-Stage Renal Disease (ESRD) Treatment Clinic/CenterTaxonomy code 261QE0700X

Legal business name

RINGWOOD DIALYSIS LLC

Practice address

1335 Pinole Valley Rd
Pinole, CA 94564-1384

Phone

(510) 964-9740

Fax

(510) 964-9728

NPI assigned

Oct 31, 2019

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Samuel T. Wey

Title

VP, Licensure & Certification

Phone

(615) 341-6641

Specialties & licenses 1

Addresses

Other names 1

• Pinole Dialysis Doing business as

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Listed as

DaVita Pinole Dialysis CenterCCN 752522

Overall star rating

4.0 of 5

Ownership

Profit

Certified

Feb 19, 2021

Medicare certification status

ActiveFrom the Provider of Services file

Chain

DaVita

Dialysis stations

24

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Member of 1

Organizations this organization is a member of, according to the National Provider Directory.

• Total Renal Care Inc

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Rockfrd, IL
  • NPI 1154997591

  Member Of

  NPD member

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Maria Enrica Diaz Pagtalunan, MD

  • Nephrology Physician
  • Berkeley, CA
  • NPI 1629175310
  NPD (past)

Affiliated clinicians 3

Clinicians who list this facility as an affiliation in Medicare Care Compare.

• Yu-CHI Lapid, MD

  • Internal Medicine Physician
  • Berkeley, CA
  • NPI 1750904660

  Dialysis facility

  Care Compare affiliation Name & address match
• Thuy Minh Nguyen

  • Nephrology Physician
  • Richmond, CA
  • NPI 1790092732

  Dialysis facility

  Care Compare affiliation Name & address match
• Maria Enrica Diaz Pagtalunan, MD

  • Nephrology Physician
  • Berkeley, CA
  • NPI 1629175310

  Dialysis facility

  Care Compare affiliation Name & address match

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1572480000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1788825600000",
    "number": "1497399620",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5200 VIRGINIA WAY",
            "address_2": "L&C DEPT",
            "city": "BRENTWOOD",
            "state": "TN",
            "postal_code": "370277569"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1335 PINOLE VALLEY RD",
            "city": "PINOLE",
            "state": "CA",
            "postal_code": "945641384",
            "telephone_number": "510-964-9740",
            "fax_number": "510-964-9728"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "RINGWOOD DIALYSIS LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2019-10-31",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A",
        "authorized_official_last_name": "WEY",
        "authorized_official_first_name": "SAMUEL",
        "authorized_official_middle_name": "T.",
        "authorized_official_title_or_position": "VP, LICENSURE & CERTIFICATION",
        "authorized_official_telephone_number": "615-341-6641"
    },
    "taxonomies": [
        {
            "code": "261QE0700X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, End-Stage Renal Disease (ESRD) Treatment",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Pinole Dialysis",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Pinole Dialysis",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Marcy Jean Renfer, OTD, OTR/L
• Robert M Renkin, DC
• Valarie Yvonne Rice, MFC 45232
• Grant Richardson
• Richmond Urological Medical Group,Inc
• Montserrat Rivera
• Robert a. Fox, MD, Inc
• Jennifer Rodas
• Jeanne Mary Roder, MS SLP CCC
• Zygy Roe-Zurz, MD

• End-Stage Renal Disease (ESRD) Treatment Clinic/Center in Pinole, CA
• Providers in Pinole, CA by specialty
• End-Stage Renal Disease (ESRD) Treatment Clinic/Center in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.