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DR. WARREN GEISLER M.D.
NPI 1902867955
Internal Medicine in Bronx, NY

Active since March 30, 2006PECOS EnrolledAccepts Medicare Assignment
98.81/100
CMS Quality Rating
1578 WILLIAMSBRIDGE RD, SUITE 2D, BRONX, NY 10461(718) 863-8465(718) 863-8983 Get Directions Write a Review

NPPES record last updated: June 3, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Warren Geisler M.d. NPPES

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

DR. WARREN GEISLER M.D. (NPI 1902867955) is an individual internal medicine provider in Bronx, New York, licensed in New York (184047) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of New York Medical College (1989).

NPPES Registry Identity

NPI1902867955
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WARREN GEISLERCredential: M.D.
Location Address1578 WILLIAMSBRIDGE RD, SUITE 2DBronx, NY 10461-6265
Mailing Address1578 Williamsbridge Rd, Suite 2dBronx, NY 10461-6265 · (718) 863-8465 · Fax (718) 863-8983
Phone(718) 863-8465
Fax(718) 863-8983
Sole ProprietorYes
Medical School CMSNew York Medical CollegeGraduated 1989
Enumeration DateMarch 30, 2006
Last NPPES UpdateJune 3, 2015
✔ NPI 1902867955 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 184047
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.
1578 WILLIAMSBRIDGE RD, Bronx, NY 10461
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Other Identifiers 3

OtherA400012345NY · Group Member Ptan
Medicare UPING03728NY
Medicaid01571668NY

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. Warren Geisler M.d. 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 ID1254361363
PECOS Enrollment IDI20080226000388
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 Warren Geisler reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Warren Geisler, M.D., P.C.
Same address
Internal Medicine
1578 WILLIAMSBRIDGE RD, SUITE 2D
Bronx, NY 10461
  • Reassigned Medicare billing, New York enrollment
NPI 1750577094 (718) 863-8465

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 8

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 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.
413 services220 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
309 services221 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
249 services71 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
68 services65 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
65 services65 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
52 services52 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10461 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.

98.81/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.63
Promoting Interoperability95
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 3

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
19 suppliers57 claims163 services$4.19 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
14 suppliers33 claims50 services$0.91 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 suppliers12 claims12 services$170.67 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.

OLGA L. VILLAMIL
Physical Therapist
1578 WILLIAMSBRIDGE RD, SUITE 3D
BRONX, NY 10461
Bronx County (718) 863-3292
RENAL MEDICINE, P.C.
Internal Medicine (Nephrology)
1578 WILLIAMSBRIDGE RD
BRONX, NY 10461
Bronx County (718) 822-1469
HELEN MAY MD PLLC
Internal Medicine
1578 WILLIAMSBRIDGE RD, LEVEL C
BRONX, NY 10461
Bronx County (718) 597-5700
KATHLEEN O CONNOR MD
Dermatology
1578 WILLIAMSBRIDGE RD
BRONX, NY 10461
Bronx County (718) 518-8888
LISMARY BETANCES
Marriage & Family Therapist
1578 WILLIAMSBRIDGE RD
BRONX, NY 10461
Bronx County (855) 771-0404
DR. BERNARD M. WEINER M.D.
Internal Medicine (Nephrology)
1578 WILLIAMSBRIDGE RD, SUITE 2D
BRONX, NY 10461
Bronx County (718) 863-8465
MARCO GENTILUCCI M.D.
Internal Medicine (Cardiovascular Disease)
1578 WILLIAMSBRIDGE RD
BRONX, NY 10461
Bronx County (718) 892-7817
BRYAN RUSSELL LATZMAN MD
Internal Medicine (Cardiovascular Disease)
1578 WILLIAMSBRIDGE RD
BRONX, NY 10461
Bronx County (718) 892-7817

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 Warren Geisler's NPI number?

The NPI number for Warren Geisler is 1902867955. It was assigned to this individual provider in the NPPES registry on March 30, 2006.

Where is Warren Geisler located?

Warren Geisler practices at 1578 Williamsbridge Rd Suite 2D, Bronx, NY 10461. The listed phone number is (718) 863-8465.

What is Warren Geisler's specialty?

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

Is Warren Geisler enrolled in Medicare?

Yes. Warren Geisler 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 organization bills Medicare for Warren Geisler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Warren Geisler reassigns Medicare benefits to Warren Geisler, M.D., P.C. (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 Warren Geisler'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 Warren Geisler was last updated on June 3, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.