ALAN L GASS MD
NPI 1306847603
Internal Medicine - Cardiovascular Disease in East Meadow, NY

Q: What is Alan Gass's NPI number?

The NPI number for Alan Gass is 1306847603. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Q: What is Alan Gass's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Alan Gass was last updated on December 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 August 09, 2005PECOS EnrolledAccepts Medicare Assignment

98.07/100

CMS Quality Rating

1900 HEMPSTEAD TPKE, 500, EAST MEADOW, NY 11554(516) 542-1090(516) 794-8165 Get Directions Write a Review

NPPES record last updated: December 9, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Alan L Gass Md NPPES

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

ALAN L GASS MD (NPI 1306847603) is an individual cardiovascular disease provider in East Meadow, New York, licensed in New York (173742) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Hospital Of Suffern, and is a graduate of Other (1984).

NPPES Registry Identity

NPI1306847603

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameALAN L GASSCredential: MD

Location Address1900 HEMPSTEAD TPKE, 500East Meadow, NY 11554-1724

Mailing AddressOne Gustave Levy Place, 1030New York, NY 10029 · (212) 241-5170 · Fax (212) 369-3269

Phone(516) 542-1090

Fax(516) 794-8165

Sole ProprietorNo

Medical School CMSOtherGraduated 1984

Enumeration DateAugust 9, 2005

Last NPPES UpdateDecember 9, 2021

NPPES CertifiedDecember 9, 2021

✔ NPI 1306847603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in NY · 173742

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

1900 HEMPSTEAD TPKE, East Meadow, NY 11554

Open in Google Maps ↗

Other Identifiers 1

Medicaid01131924NY

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

Alan L Gass 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 ID6103887690

PECOS Enrollment IDI20041019000588

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

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

Westchester Medical Center Advanced Physician Services PC

28 mi

Anesthesiology

100 WOODS RD, TAYLOR PAVILION - ROOM M229
Valhalla, NY 10595

Reassigned Medicare billing, New York enrollment
1,663 clinicians in this Medicare group

NPI 1740687458 (914) 493-2844

Bon Secours Charity Health System Medical Group, P.C.

56 mi

Internal Medicine

20 GRAND ST, 3RD FLOOR
Warwick, NY 10990

Reassigned Medicare billing, New York enrollment
176 clinicians in this Medicare group

NPI 1487694345 (845) 987-3906

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 13

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

201 services98 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

156 services55 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

119 services78 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

115 services68 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

109 services50 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

39 services24 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

38 services36 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.

17 services17 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

16 services15 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

13 services13 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

12 services12 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

11 services11 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Good Samaritan Hospital Of Suffern

Acute Care Hospitals · Suffern, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330158

Location255 Lafayette AvenueSuffern, NY 10901 · Rockland County

Emergency services Birthing friendly

Westchester Medical Center

Acute Care Hospitals · Valhalla, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number330234

Location100 Woods RdValhalla, NY 10595 · Westchester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11554 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

$83.44 typical visit price

range $21.66 – $164.45

Typical copayment $20.86 (range $5.41 – $41.11)

Most-billed visit code 99213

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.

98.07/100

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

Scored through an Alternative Payment Model

Quality

86.62

Promoting Interoperability

100

Improvement Activities

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.

ALAN HERBERT FRIEDMAN MD

Ophthalmology

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

DR. JENNY CHUNG D.D.S., M.S.

Dentist (Orthodontics and Dentofacial Orthopedics)

1900 HEMPSTEAD TPKE, SUITE 202
EAST MEADOW, NY 11554

Nassau County (516) 794-9211

PAULA CARACTA MD

Pathology (Cytopathology)

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

DR. LAURENCE HARVEY MILLER M.D.

Pediatrics

1900 HEMPSTEAD TPKE, SUITE 502
EAST MEADOW, NY 11554

Nassau County (516) 485-2357

DAPHNE ROITBERG MD

Radiology (Diagnostic Radiology)

1900 HEMPSTEAD TPKE, 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

PATIENT CENTERED MEDICAL DIAGNOSTICS PC

Internal Medicine (Cardiovascular Disease)

1900 HEMPSTEAD TPKE, SUITE 401
EAST MEADOW, NY 11554

Nassau County (516) 872-7001

ARASH GOHARI MD

Radiology (Vascular & Interventional Radiology)

1900 HEMPSTEAD TPKE, 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

VASCULAR DISEASE AND DIAGNOSTIC PREVENTION INC

Internal Medicine (Cardiovascular Disease)

1900 HEMPSTEAD TPKE, SUITE 401
EAST MEADOW, NY 11554

Nassau County (516) 872-7001

RABIA MIR MD

Pathology (Anatomic Pathology & Clinical Pathology)

1900 HEMPSTEAD TPKE, 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

MIRIAM BIRGE MD

Pathology (Anatomic Pathology & Clinical Pathology)

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

LARRY BERNSTEIN MD

Pathology (Anatomic Pathology & Clinical Pathology)

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

STEVEN MARK OSTROW MD

Radiology (Diagnostic Radiology)

1900 HEMPSTEAD TPKE, 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

CAROL FAY WHITSETT MD

Pathology (Blood Banking & Transfusion Medicine)

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

MINDY REED

Physician Assistant (Medical)

1900 HEMPSTEAD TPKE, SUITE 503
EAST MEADOW, NY 11554

Nassau County (516) 794-0404

CHERYL DELBRIDGE MD

Pathology (Anatomic Pathology)

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

SHANTHI GOVINDARAJ MD

Pathology (Cytopathology)

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

DAVID BURSTEIN MD

Pathology (Cytopathology)

1900 HEMPSTEAD TPKE, SUITE 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

ATTAINABLE PHYSICAL THERAPY PC

Physical Therapist

1900 HEMPSTEAD TPKE, SUITE 401
EAST MEADOW, NY 11554

Nassau County (516) 872-7001

DR. CHRISTOPHER L. CALAPAI D.O.

Family Medicine

1900 HEMPSTEAD TPKE, SUITE503
EAST MEADOW, NY 11554

Nassau County (516) 794-0404

AKIVA YOSEF SILTON MD

Pediatrics

1900 HEMPSTEAD TPKE, 500
EAST MEADOW, NY 11554

Nassau County (516) 542-1090

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 Alan Gass's NPI number?

The NPI number for Alan Gass is 1306847603. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is Alan Gass located?

Alan Gass practices at 1900 Hempstead Tpke 500, East Meadow, NY 11554. The listed phone number is (516) 542-1090.

What is Alan Gass's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Alan Gass enrolled in Medicare?

Yes. Alan Gass 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 Alan Gass's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alan Gass reassigns Medicare benefits to 2 organizations: Westchester Medical Center Advanced Physician Services PC (Valhalla, NY) and Bon Secours Charity Health System Medical Group, P.C. (Warwick, 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 Alan Gass's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Alan Gass affiliated with any hospitals?

According to CMS data, Alan Gass is affiliated with Good Samaritan Hospital Of Suffern and Westchester Medical Center.

When was this NPI record last updated?

The NPPES record for Alan Gass was last updated on December 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.