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DR. MARIA SARAH N. GUEVARRA M.D.
NPI 1174767529
Pediatrics - Pediatric Endocrinology in Nesconset, NY

Active since April 29, 2009PECOS Enrolled
59A NICHOLS RD, NESCONSET, NY 11767(631) 656-6940(631) 656-6940 Get Directions Write a Review

NPPES record last updated: April 29, 2009. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Maria Sarah N. Guevarra M.d. NPPES

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

DR. MARIA SARAH N. GUEVARRA M.D. (NPI 1174767529) is an individual pediatric endocrinology provider in Nesconset, New York, licensed in New York (242923) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174767529
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameDR. MARIA SARAH N. GUEVARRACredential: M.D.
Location Address59A NICHOLS RDNesconset, NY 11767-2093
Mailing Address59 A Nichols RoadNesconset, NY 11767-2093 · (631) 656-6940 · Fax (631) 656-6940
Phone(631) 656-6940
Fax(631) 656-6940
Sole ProprietorYes
Enumeration DateApril 29, 2009
✔ NPI 1174767529 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in NY · 242923
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
59A NICHOLS RD, Nesconset, NY 11767
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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)

Dr. Maria Sarah N. Guevarra M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Maria Sarah Guevarra reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Samaritan Pediatric Services, P.C.
13 mi
Pediatrics
655 DEER PARK AVE
Babylon, NY 11702
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Samaritan Pediatric Services PC
  • 55 clinicians in this Medicare group
NPI 1730308925 (631) 321-2100

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 11767 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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

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

DR. JOAN CATHERINE GUEVARRA M.D.
General Practice
59A NICHOLS RD
NESCONSET, NY 11767
Suffolk County (631) 656-6940

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 Maria Sarah Guevarra's NPI number?

The NPI number for Maria Sarah Guevarra is 1174767529. It was assigned to this individual provider in the NPPES registry on April 29, 2009.

Where is Maria Sarah Guevarra located?

Maria Sarah Guevarra practices at 59A Nichols Rd, Nesconset, NY 11767. The listed phone number is (631) 656-6940.

What is Maria Sarah Guevarra's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Maria Sarah Guevarra enrolled in Medicare?

Yes. Maria Sarah Guevarra is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maria Sarah Guevarra's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Sarah Guevarra reassigns Medicare benefits to Samaritan Pediatric Services, P.C. (Babylon, NY). 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 Maria Sarah Guevarra'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 Maria Sarah Guevarra was last updated on April 29, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.