DR. TAHIR AHMAD M.D.
NPI 1578950218
Internal Medicine - Critical Care Medicine in Roslyn, NY

Q: What is Tahir Ahmad's NPI number?

The NPI number for Tahir Ahmad is 1578950218. It was assigned to this individual provider in the NPPES registry on April 21, 2015.

Q: What is Tahir Ahmad's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Tahir Ahmad was last updated on March 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 21, 2015PECOS Enrolled

84.39/100

CMS Quality Rating

100 PORT WASHINGTON BLVD, ROSLYN, NY 11576(516) 562-6000 Get Directions Write a Review

NPPES record last updated: March 18, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Tahir Ahmad M.d. NPPES

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

DR. TAHIR AHMAD M.D. (NPI 1578950218) is an individual critical care medicine provider in Roslyn, New York, licensed in New York (304200) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with St Francis Hospital - The Heart Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1578950218

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameDR. TAHIR AHMADCredential: M.D.

Location Address100 PORT WASHINGTON BLVDRoslyn, NY 11576-1347

Mailing Address100 Port Washington BlvdRoslyn, NY 11576-1347 · (516) 562-6000

Phone(516) 562-6000

Sole ProprietorYes

Medical School CMSOtherGraduated 2015

Enumeration DateApril 21, 2015

Last NPPES UpdateMarch 18, 2023

NPPES CertifiedMarch 18, 2023

✔ NPI 1578950218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in NY · 304200

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedEmergency MedicineTaxonomy 207P00000X · License 304200 (NY)

Also ListedInternal MedicineTaxonomy 207R00000X · License 304200 (NY)

100 PORT WASHINGTON BLVD, Roslyn, NY 11576

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Secondary Practice Locations 2

Location 1451 Clarkson AveBrooklyn, NY 11203-2054 · Phone (718) 245-3131

Location 2111 E 210th StBronx, NY 10467-2401 · Phone (718) 920-4321

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Tahir Ahmad M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9133504467

PECOS Enrollment IDI20220922000609

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 Tahir Ahmad reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St Francis Hospital

Same address

General Acute Care Hospital

100 PORT WASHINGTON BLVD
Roslyn, NY 11576

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

NPI 1205984580 (516) 338-5358

Montefiore Medical Center

12 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 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.

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.

473 services249 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.

65 services38 patients

Critical care, each additional 30 minutes 99292

Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.

28 services19 patients

Hospital Affiliations CMS Care Compare

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

St Francis Hospital - The Heart Center

Acute Care Hospitals · Roslyn, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330182

Location100 Port Washington BoulevardRoslyn, NY 11576 · Nassau County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11576 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.

84.39/100

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

Scored as part of a group practice

Quality

85.34

Promoting Interoperability

100

Improvement Activities

Cost

57.02

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.

ERIN MARIE MARKEY R.N.,M.S.,APRN-BC

Nurse Practitioner (Acute Care)

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 562-6351

DR. MENA YACOUB D.O

Internal Medicine (Clinical Cardiac Electrophysiology)

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (718) 689-0316

JULIA COHEN

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 562-6000

PEDIATRIC CARDIOLOGY OF LI PC

Pediatrics (Pediatric Cardiology)

100 PORT WASHINGTON BLVD, SUITE 108
ROSLYN, NY 11576

Nassau County (516) 365-3340

PATRICK BRENNAN P.A.

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 338-5358

KENNETH ZIELINSKI P.A.

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 338-5358

DR. STEFAN MILTON MUEHLBAUER M.D., PHD

Emergency Medicine

100 PORT WASHINGTON BLVD, DEPT OF EMERGENCY MEDICINE
ROSLYN, NY 11576

Nassau County (165) 626-6055

MRS. MELISSA A MORELLI FNP-C

Nurse Practitioner (Family)

100 PORT WASHINGTON BLVD, ST. FRANCIS HOSPITAL EMERGENCY ROOM
ROSLYN, NY 11576

Nassau County (516) 562-6600

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 Tahir Ahmad's NPI number?

The NPI number for Tahir Ahmad is 1578950218. It was assigned to this individual provider in the NPPES registry on April 21, 2015.

Where is Tahir Ahmad located?

Tahir Ahmad practices at 100 Port Washington Blvd, Roslyn, NY 11576. The listed phone number is (516) 562-6000.

What is Tahir Ahmad's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Tahir Ahmad enrolled in Medicare?

Yes. Tahir Ahmad is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tahir Ahmad's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tahir Ahmad reassigns Medicare benefits to 2 organizations: St Francis Hospital (Roslyn, NY) and Montefiore Medical Center (Bronx, 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 Tahir Ahmad's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Tahir Ahmad affiliated with any hospitals?

According to CMS data, Tahir Ahmad is affiliated with St Francis Hospital - The Heart Center.

When was this NPI record last updated?

The NPPES record for Tahir Ahmad was last updated on March 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.