MS. GLENNIS MERCEDES ALVARADO
NPI 1932442100
Internal Medicine in East Setauket, NY

Q: What is Glennis Alvarado's NPI number?

The NPI number for Glennis Alvarado is 1932442100. It was assigned to this individual provider in the NPPES registry on April 5, 2013.

Q: What is Glennis Alvarado's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Glennis Alvarado was last updated on August 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since April 05, 2013PECOS Enrolled

98.52/100

CMS Quality Rating

205 N BELLE MEAD RD, EAST SETAUKET, NY 11733(212) 659-8551 Get Directions Write a Review

NPPES record last updated: August 26, 2020. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Aug 26, 2020, Oct 1, 2018 (2 updates tracked since 2018).

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About Ms. Glennis Mercedes Alvarado NPPES

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

MS. GLENNIS MERCEDES ALVARADO (NPI 1932442100) is an individual internal medicine provider in East Setauket, New York, licensed in New York (283155) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932442100

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameMS. GLENNIS MERCEDES ALVARADO

Location Address205 N BELLE MEAD RDEast Setauket, NY 11733-3483

Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-8279

Phone(212) 659-8551

Sole ProprietorNo

Enumeration DateApril 5, 2013

Last NPPES UpdateAugust 26, 20202 updates tracked since enumeration

NPPES CertifiedAugust 26, 2020

✔ NPI 1932442100 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in NY · 283155✔ Licensed in NC · 239933

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.

205 N BELLE MEAD RD, East Setauket, NY 11733

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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)

Ms. Glennis Mercedes Alvarado 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 Glennis Alvarado reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Montefiore Medical Center

41 mi

Anesthesiology

111 E 210TH ST
Bronx, NY 10467

Reassigned Medicare billing, New York enrollment
5,251 clinicians in this Medicare group

NPI 1063525152 (914) 378-6021

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

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.

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.

75 services71 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11733 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.52/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

82.85

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

7 suppliers20 claims57 services$6.58 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$56.45 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

1 supplier12 claims12 services$13.90 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

2 suppliers15 claims15 services$189.38 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$32.06 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. MELISSA LECTURA MD

Family Medicine (Geriatric Medicine)

205 N BELLE MEAD RD
EAST SETAUKET, NY 11733

Suffolk County (631) 444-4630

LIDIA VALJAN

Nurse Practitioner (Primary Care)

205 N BELLE MEAD RD
EAST SETAUKET, NY 11733

Suffolk County (631) 444-4630

DR. KERIM ODEKON MD

Internal Medicine

205 N BELLE MEAD RD
SETAUKET, NY 11733

Suffolk County (631) 444-4630

DR. WILLIAM WERTHEIM M.D.

Internal Medicine

205 N BELLE MEAD RD
EAST SETAUKET, NY 11733

Suffolk County (631) 444-4630

RITA MARIE KELLY NP

Nurse Practitioner (Adult Health)

205 N BELLE MEAD RD
EAST SETAUKET, NY 11733

Suffolk County (631) 444-4795

DR. LISA STRANO-PAUL M.D.

Internal Medicine

205 N BELLE MEAD RD
EAST SETAUKET, NY 11733

Suffolk County (631) 444-4630

DR. KIMBERLY ANN KRANZ M.D.

Internal Medicine

205 N BELLE MEAD RD
EAST SETAUKET, NY 11733

Suffolk County (631) 444-4630

TRACEY L SPINNATO MD

Internal Medicine

205 N BELLE MEAD RD, STONY BROOK PRIMARY CARE CENTER
EAST SETAUKET, NY 11733

Suffolk County (631) 444-4630

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 Glennis Alvarado's NPI number?

The NPI number for Glennis Alvarado is 1932442100. It was assigned to this individual provider in the NPPES registry on April 5, 2013.

Where is Glennis Alvarado located?

Glennis Alvarado practices at 205 N Belle Mead Rd, East Setauket, NY 11733. The listed phone number is (212) 659-8551.

What is Glennis Alvarado's specialty?

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

Is Glennis Alvarado enrolled in Medicare?

Yes. Glennis Alvarado is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Glennis Alvarado's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Glennis Alvarado reassigns Medicare benefits to Montefiore Medical Center (Bronx, 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 Glennis Alvarado'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 Glennis Alvarado was last updated on August 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.