DR. ANA MARIA LOPEZ MD
NPI 1568040087
Internal Medicine in Stony Brook, NY

Active since March 29, 2021PECOS EnrolledAccepts Medicare Assignment
101 NICOLLS RD, STONY BROOK, NY 11794(631) 444-2020(631) 444-2894 Get Directions Write a Review

NPPES record last updated: July 31, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Ana Maria Lopez Md NPPES

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

DR. ANA MARIA LOPEZ MD (NPI 1568040087) is an individual internal medicine provider in Stony Brook, New York, licensed in New York (334666) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1568040087
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ANA MARIA LOPEZCredential: MD
Location Address101 NICOLLS RDStony Brook, NY 11794-0001
Mailing Address101 Nicolls RdStony Brook, NY 11794-0001 · (631) 444-2020 · Fax (631) 444-2894
Fax(631) 444-2894
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 29, 2021
Last NPPES UpdateJuly 31, 2025
NPPES CertifiedJuly 31, 2025
✔ NPI 1568040087 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 334666
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License 334666 (NY)
101 NICOLLS RD, Stony Brook, NY 11794

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

Dr. Ana Maria Lopez 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 ID4385146778
PECOS Enrollment IDI20250905000369
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

2

Medicare enrollment records show Ana Lopez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pediatrics
SUNY @ STONY BROOK, HSC, L11, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 191 clinicians in this Medicare group
Nephrology
SUNY @ STONY BROOK, HSC, L16, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 261 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY
4/5 CMS rating
OwnershipGovernment - State
CMS Certification Number330393
LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11794 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 20

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

Internal Medicine
101 NICOLLS RD
STONY BROOK, NY 11794
Internal Medicine (Gastroenterology)
101 NICOLLS RD
STONY BROOK, NY 11794
Social Worker (Clinical)
101 NICOLLS RD
STONY BROOK, NY 11794
Nurse Practitioner (Adult Health)
101 NICOLLS RD
STONY BROOK, NY 11794
Nurse Practitioner (Adult Health)
101 NICOLLS RD
STONY BROOK, NY 11794
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD
STONY BROOK, NY 11794
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD
STONY BROOK, NY 11794
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD
STONY BROOK, NY 11794

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 Ana Lopez's NPI number?

The NPI number for Ana Lopez is 1568040087. It was assigned to this individual provider in the NPPES registry on March 29, 2021.

Where is Ana Lopez located?

Ana Lopez practices at 101 Nicolls Rd, Stony Brook, NY 11794. The listed phone number is (631) 444-2020.

What is Ana Lopez's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ana Lopez enrolled in Medicare?

Yes. Ana Lopez 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 Ana Lopez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ana Lopez reassigns Medicare benefits to 2 organizations: Stony Brook Children's Service, University Faculty Practice Corporatio (Stony Brook, NY) and Stony Brook Internists, University Faculty Practice Corporation (Stony Brook, NY). 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 Ana Lopez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Ana Lopez affiliated with any hospitals?

According to CMS data, Ana Lopez is affiliated with Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for Ana Lopez was last updated on July 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.