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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NEOPHYTOS COSTAS ZAMBAS MD
NPI 1609437516
Family Medicine in Redwood City, CA

Active since June 23, 2019PECOS EnrolledAccepts Medicare Assignment
401 WARREN ST STE 300, REDWOOD CITY, CA 94063(240) 693-3281(207) 881-4056 Get Directions Write a Review

NPPES record last updated: September 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 20, 2026, Jul 16, 2026, Oct 10, 2022 and 1 more (4 updates tracked since 2019).

About Neophytos Costas Zambas Md NPPES

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

NEOPHYTOS COSTAS ZAMBAS MD (NPI 1609437516) is an individual family medicine provider in Redwood City, California, licensed in New Jersey (25MA11518700) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1609437516
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameNEOPHYTOS COSTAS ZAMBASCredential: MD
Location Address401 WARREN ST STE 300Redwood City, CA 94063-1536
Mailing Address401 Warren St Ste 300Redwood City, CA 94063-1536 · (240) 693-3281 · Fax (207) 881-4056
Phone(240) 693-3281
Fax(207) 881-4056
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJune 23, 2019
Last NPPES UpdateSeptember 20, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 20, 2026
✔ NPI 1609437516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in NJ · 25MA11518700
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
401 WARREN ST STE 300, Redwood City, CA 94063
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Providence Health Plan.Insurance ›

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

Neophytos Costas Zambas Md 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 ID648646257
PECOS Enrollment IDI20251218004445
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

3

Medicare enrollment records show Neophytos Zambas reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Solace Health Medical Group Inc
Same address
Geriatric Medicine
401 WARREN ST STE 300
Redwood City, CA 94063
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 8 clinicians in this Medicare group
NPI 1801669924 (708) 320-1477
Atlantic Urgent Care, LLC
2,526 mi
General Practice
181 HIGH ST
Newton, NJ 07860
  • Reassigned Medicare billing, New Jersey enrollment
  • 80 clinicians in this Medicare group
NPI 1023358959 (973) 383-9898
Immediate Care Medical Walk-In Of Hazlet, PA
2,564 mi
Urgent Care
1376 HIGHWAY 36
Hazlet, NJ 07730
  • Reassigned Medicare billing, New Jersey enrollment
  • 142 clinicians in this Medicare group
NPI 1245595313 (732) 264-5500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

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.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
44 services44 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
20 services18 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 87426
An immunoassay test for severe acute respiratory syndrome coronavirus is a diagnostic tool. It uses your body's immune response to detect the presence of the virus. It involves taking a sample, usually from your nose or throat, which is then analyzed in a lab for signs of the virus.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94063 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
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 5

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

DR. GENY AUGUSTINE MD
Family Medicine
401 WARREN ST STE 300
REDWOOD CITY, CA 94063
San Mateo County (240) 693-3281
JAYME LAURENCELLE MD
Internal Medicine
401 WARREN ST STE 300
REDWOOD CITY, CA 94063
San Mateo County (240) 693-3281
SOLACE HEALTH MEDICAL GROUP INC
Family Medicine (Geriatric Medicine)
401 WARREN ST STE 300
REDWOOD CITY, CA 94063
San Mateo County (708) 320-1477
SOLACE HEALTH MEDICAL GROUP CA, P.C.
Internal Medicine (Geriatric Medicine)
401 WARREN ST STE 300
REDWOOD CITY, CA 94063
San Mateo County (240) 693-3281
DR. JAI CHETAN GANDHI M.D.
Psychiatry & Neurology (Psychiatry)
401 WARREN ST STE 300
REDWOOD CITY, CA 94063
San Mateo County (650) 686-5013

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 Neophytos Zambas's NPI number?

The NPI number for Neophytos Zambas is 1609437516. It was assigned to this individual provider in the NPPES registry on June 23, 2019.

Where is Neophytos Zambas located?

Neophytos Zambas practices at 401 Warren St Ste 300, Redwood City, CA 94063. The listed phone number is (240) 693-3281.

What is Neophytos Zambas's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Neophytos Zambas enrolled in Medicare?

Yes. Neophytos Zambas 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 Neophytos Zambas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Neophytos Zambas reassigns Medicare benefits to 3 organizations: Solace Health Medical Group Inc (Redwood City, CA), Atlantic Urgent Care, LLC (Newton, NJ) and Immediate Care Medical Walk-In Of Hazlet, PA (Hazlet, NJ). 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 Neophytos Zambas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Neophytos Zambas accept?

Health plans from Oscar Health and Providence Health Plan list Neophytos Zambas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Neophytos Zambas was last updated on September 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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.