Dr. Warren W. Geisler, MD
- Medicare services, 2024
- 1,235
- Medicare patients, 2024
- 298
- Part D claims, 2024
- 7,653
- MIPS score, 2024
- 95
- Industry payments
- $8,541
- Practice address
- 1578 Williamsbridge Rd, Bronx, NY 10461
- Practice phone
- Call (718) 863-8465
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Warren Geisler, M.D.
Bronx, New York
Find Dr. Geisler's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Warren W. Geisler is an internist in Bronx, New York
Dr. Geisler practices at Warren Geisler, M.D. in Bronx, New York.
Dr. Geisler's NPI, 1902867955, was assigned on March 30, 2006. Dr. Geisler graduated from New York Medical College in 1989. Dr. Geisler holds New York license 184047.
- NPI
- 1902867955NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254361363
- NPI enumeration date
- March 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (718) 863-8465
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Warren W. Geisler practices at Warren Geisler, M.D. in Bronx, New York
Dr. Geisler's primary practice is Warren Geisler, M.D., at 1578 Williamsbridge Rd, Bronx, NY 10461 in Bronx County. The practice phone is (718) 863-8465.
- Warren Geisler, M.D.1578 Williamsbridge Rd, Bronx, NY 10461 · Bronx CountyPhone(718) 863-8465
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Warren W. Geisler is affiliated with 6 sites of care and 1 medical group
Dr. Geisler's primary practice is Warren Geisler, M.D. in Bronx, New York. Dmand AI also links Dr. Geisler to 3 home health agencies, 1 physician office, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Warren W. Geisler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Geisler practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Warren Geisler, M.D. | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Warren W. Geisler is one of 9,643 internists in New York
Internal medicine is Dr. Geisler's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Geisler is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Geisler
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Warren W. Geisler billed Medicare for 1,235 services in 2024
CMS data shows 1,235 Medicare services from Dr. Geisler across 9 procedure codes in 2024, for 298 Medicare patients. Medicare paid $79,116 for them. Every service was in an office.
Dr. Geisler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6712024: 6621%
- Surgery
- 2023: 2932024: 3095%
- Other services
- 2023: 2052024: 24419%
- Tests and treatments
- 2023: 922024: 2078%
Dr. Geisler compared with the New York median for internists, 2024
- Dr. Geisler
- New York median
- Medicare services
- 1,235vs 4262.9 times
- Medicare patients
- 298vs 15889% above
- Part D claims
- 6,874vs 62211.1 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Geisler's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Geisler and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Warren W. Geisler treated 298 Medicare patients in 2024, average age 75
CMS counts 298 Medicare patients who saw Dr. Geisler in 2024. The largest group is 75 to 84, with 119 patients. 75% of them have diabetes, and 75% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Geisler's median patient age at 64, with 48% women.
Dr. Geisler's Medicare patients by age, 2024
Dr. Geisler's Medicare patients by sex, 2024
- Women16154%
- Men13746%
Chronic conditions among Dr. Geisler's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Arthritis38%
- Ischemic heart disease27%
- Cancer20%
- Anxiety17%
- COPD17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Geisler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women48%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Warren W. Geisler wrote 7,653 Medicare Part D claims in 2024
In 2024, Dr. Geisler wrote 7,653 Medicare Part D claims for 577 patients. 85% of them were for generic drugs. CMS names the drug for 6,874 of them, across 133 drugs with 11 or more claims each, at $677,719 in total drug cost. In 2023, CMS named 6,883 claims across 133 drugs.
Dr. Geisler's Part D claims by kind of drug, 2024
- Generic6,521 claims85%
- Brand-name1,039 claims14%
- Other93 claims1%
Dr. Geisler's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Geisler's Part D claims, 2024
- Opioids5%396 of 7,653 claims
- Antibiotics3%246 of 7,653 claims
- Antipsychotics, patients 65 and over1%54 of 7,653 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,8832024: 6,874No change
Drugs named by CMS: 133 in 2024, 133 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Warren W. Geisler scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Geisler for performance year 2024, reported through an alternative payment model (APM). Dr. Geisler accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Geisler as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Geisler's MIPS scores, performance year 2024
- 95of 100Final score
- 80.4of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Warren W. Geisler received $8,541 in industry payments from 2016 to 2025
CMS Open Payments shows 438 general payments to Dr. Geisler from 36 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $1,498.
General payments to Dr. Geisler by program year, 2016 to 2025
Companies that paid Dr. Geisler the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Warren W. Geisler graduated from New York Medical College
Dr. Geisler graduated from New York Medical College in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Warren W. Geisler's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Warren W. Geisler
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Warren W. Geisler's NPI number?
Dr. Warren W. Geisler's NPI number is 1902867955. It was assigned on March 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Warren W. Geisler?
Dr. Warren W. Geisler is an internist in Bronx, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Warren W. Geisler practice?
Dr. Geisler practices at 1578 Williamsbridge Rd, Bronx, NY 10461. Dr. Geisler's primary practice is Warren Geisler, M.D. in Bronx, New York. Dmand AI also links Dr. Geisler to 3 home health agencies, 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. Warren W. Geisler's office phone number?
The practice phone on file for Dr. Geisler is (718) 863-8465.
What is Dr. Warren W. Geisler's medical license number?
Dr. Geisler holds New York license 184047.
Does Dr. Warren W. Geisler accept Medicare?
Yes. CMS data shows Dr. Geisler billed Medicare for 1,235 services in 2024, and Dr. Geisler accepts Medicare assignment.
Does Dr. Warren W. Geisler offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Geisler as offering telehealth services.
What is Dr. Warren W. Geisler's MIPS score?
Dr. Geisler's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Warren W. Geisler see?
CMS counts 298 Medicare patients who saw Dr. Geisler in 2024, with an average age of 75.
What services does Dr. Warren W. Geisler bill to Medicare?
In 2024, Dr. Geisler's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and care management and other visits (99442).
Show 4 more questionsShow fewer questions
Where did Dr. Warren W. Geisler go to medical school?
Dr. Geisler graduated from New York Medical College in 1989.
What drugs does Dr. Warren W. Geisler prescribe most?
In 2024 Medicare Part D data, Dr. Geisler's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Warren W. Geisler received payments from drug or device companies?
CMS Open Payments shows $8,541 in general payments to Dr. Geisler from 36 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Warren W. Geisler been practicing?
Dr. Geisler graduated from medical school in 1989, 37 years ago.
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