Dr. Lanny S. Schwartzfarb, MD
- Medicare services, 2024
- 50,900
- Medicare patients, 2024
- 119
- Part D claims, 2024
- 451
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 400 East Main Street, Mount Kisco, NY 10549
- Practice phone
- Call (914) 666-1200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Schwartzfarb's professional email, personal email and mobile number
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Dr. Lanny S. Schwartzfarb is a rheumatologist in Mount Kisco, New York
Dr. Schwartzfarb practices at Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
Dr. Schwartzfarb's NPI, 1770625626, was assigned on February 13, 2007. Dr. Schwartzfarb graduated from New York Medical College in 1972. Dr. Schwartzfarb holds New York license 118558.
- NPI
- 1770625626NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244368637
- NPI enumeration date
- February 13, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (914) 666-1200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lanny S. Schwartzfarb practices at Northern Westchester Hospital in Mount Kisco, New York
Dr. Schwartzfarb's primary practice is Northern Westchester Hospital, at 400 East Main Street, Mount Kisco, NY 10549 in Westchester County. The practice phone is (914) 666-1200.
- Northern Westchester Hospital400 East Main Street, Mount Kisco, NY 10549 · Westchester CountyPhone(914) 666-1200
Source: Dmand AI Affiliation Data
Dr. Lanny S. Schwartzfarb is affiliated with 1 site of care
Dr. Schwartzfarb's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lanny S. Schwartzfarb's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schwartzfarb practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Westchester Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwell Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lanny S. Schwartzfarb is one of 514 rheumatologists in New York
Rheumatology is Dr. Schwartzfarb's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Schwartzfarb is board certified in internal medicine by the American Board of Internal Medicine. Dr. Schwartzfarb is licensed in New York.
Specialties and state licenses
- Rheumatology, New YorkPrimary
Clinical focus
Dmand AI lists arteritis, arthritis, gout, joint arthropathy, lupus, osteoporosis and rheumatoid arthritis among the conditions Dr. Schwartzfarb treats.
Rheumatologists near Dr. Schwartzfarb
Counts of rheumatologists 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. Lanny S. Schwartzfarb billed Medicare for 50,900 services in 2024
CMS data shows 50,900 Medicare services from Dr. Schwartzfarb across 11 procedure codes in 2024, for 119 Medicare patients. Medicare paid $242,079 for them. Every service was in an office.
Dr. Schwartzfarb's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 43,2392024: 50,03116%
- Office and hospital visits
- 2023: 3582024: 3551%
- Tests and treatments
- 2023: 1992024: 24925%
- Surgery
- 2023: 2312024: 2253%
- Lab and pathology
- 2023: 922024: 2771%
- Other services
- 2023: 02024: 13
Dr. Schwartzfarb compared with the New York median for rheumatologists, 2024
- Dr. Schwartzfarb
- New York median
- Medicare services
- 50,900vs 56590.1 times
- Medicare patients
- 119vs 17632% below
- Part D claims
- 343vs 92163% below
Medians across 509 rheumatologists in New York with Dmand AI profiles that report each measure.
Dr. Schwartzfarb'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. Schwartzfarb and other rheumatologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lanny S. Schwartzfarb treated 119 Medicare patients in 2024, average age 76
CMS counts 119 Medicare patients who saw Dr. Schwartzfarb in 2024. The largest group is 75 to 84, with 58 patients. 75% of them have arthritis, and 75% have high cholesterol. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Schwartzfarb's median patient age at 58, with 62% women.
Dr. Schwartzfarb's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Schwartzfarb's Medicare patients by sex, 2024
- Women7462%
- Men4538%
Chronic conditions among Dr. Schwartzfarb's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure67%
- Ischemic heart disease38%
- Osteoporosis37%
- Diabetes26%
- Cancer19%
- COPD17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schwartzfarb's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women62%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lanny S. Schwartzfarb wrote 451 Medicare Part D claims in 2024
In 2024, Dr. Schwartzfarb wrote 451 Medicare Part D claims for 88 patients. 93% of them were for generic drugs. CMS names the drug for 343 of them, across 9 drugs with 11 or more claims each, at $7,586 in total drug cost. In 2023, CMS named 342 claims across 9 drugs.
Dr. Schwartzfarb's Part D claims by kind of drug, 2024
- Generic420 claims93%
- Brand-name31 claims7%
Dr. Schwartzfarb'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3422024: 343No change
Drugs named by CMS: 9 in 2024, 9 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. Lanny S. Schwartzfarb offers telehealth to Medicare patients
Dr. Schwartzfarb accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Schwartzfarb as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Lanny S. Schwartzfarb has 2 publications on record
Dmand AI links 2 papers to Dr. Schwartzfarb.
Recent publications by Dr. Schwartzfarb
See who Dr. Schwartzfarb researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Schwartzfarb works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lanny S. Schwartzfarb received $6,965 in industry payments from 2016 to 2025
CMS Open Payments shows 61 general payments to Dr. Schwartzfarb from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $6,416.
General payments to Dr. Schwartzfarb by program year, 2016 to 2025
General payments to Dr. Schwartzfarb by kind, 2016 to 2025
- Food and beverage$6,936100%
- Education$290%
Companies that paid Dr. Schwartzfarb 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. Lanny S. Schwartzfarb has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Schwartzfarb, most recently Top Doctors: New York Metro Area in 2014.
Awards and honors for Dr. Schwartzfarb
- 2014
- Top Doctors: New York Metro Area
- Undated
- ACR Fellow
Source: Dmand AI Professional Profile Data
Dr. Lanny S. Schwartzfarb graduated from New York Medical College
Dr. Schwartzfarb graduated from New York Medical College in 1972.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Dr. Lanny S. Schwartzfarb accepts plans from 15 insurance carriers
Dr. Schwartzfarb is in network with 15 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Cigna
- MVP Health Care
- +7 more carriersWith a free account
Plan types Dr. Schwartzfarb accepts, by number of carriers
- PPO10
- HMO7
- Medicare7
- EPO5
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Lanny S. Schwartzfarb'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Lanny S. Schwartzfarb
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. Lanny S. Schwartzfarb's NPI number?
Dr. Lanny S. Schwartzfarb's NPI number is 1770625626. It was assigned on February 13, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Lanny S. Schwartzfarb?
Dr. Lanny S. Schwartzfarb is a rheumatologist in Mount Kisco, New York. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Lanny S. Schwartzfarb practice?
Dr. Schwartzfarb practices at 400 East Main Street, Mount Kisco, NY 10549. Dr. Schwartzfarb's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
What is Dr. Lanny S. Schwartzfarb's office phone number?
The practice phone on file for Dr. Schwartzfarb is (914) 666-1200.
What is Dr. Lanny S. Schwartzfarb's medical license number?
Dr. Schwartzfarb holds New York license 118558.
Which hospitals is Dr. Lanny S. Schwartzfarb affiliated with?
Dr. Schwartzfarb practices at Northern Westchester Hospital in Mount Kisco, New York.
Does Dr. Lanny S. Schwartzfarb accept Medicare?
Yes. CMS data shows Dr. Schwartzfarb billed Medicare for 50,900 services in 2024, and Dr. Schwartzfarb accepts Medicare assignment.
Does Dr. Lanny S. Schwartzfarb offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Schwartzfarb as offering telehealth services.
How many Medicare patients does Dr. Lanny S. Schwartzfarb see?
CMS counts 119 Medicare patients who saw Dr. Schwartzfarb in 2024, with an average age of 76.
Is Dr. Lanny S. Schwartzfarb board certified?
Yes. Dr. Schwartzfarb is board certified in internal medicine by the American Board of Internal Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. Lanny S. Schwartzfarb bill to Medicare?
In 2024, Dr. Schwartzfarb's most billed Medicare services were injected or infused drug (J0717), infusion or chemotherapy administration (96401) and office visit, established patient (99214).
Where did Dr. Lanny S. Schwartzfarb go to medical school?
Dr. Schwartzfarb graduated from New York Medical College in 1972.
What drugs does Dr. Lanny S. Schwartzfarb prescribe most?
In 2024 Medicare Part D data, Dr. Schwartzfarb's most prescribed drugs by claims were Methotrexate, Prednisone and Allopurinol.
Has Dr. Lanny S. Schwartzfarb received payments from drug or device companies?
CMS Open Payments shows $6,965 in general payments to Dr. Schwartzfarb from 5 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Lanny S. Schwartzfarb been practicing?
Dr. Schwartzfarb graduated from medical school in 1972, 54 years ago.
Does Dr. Lanny S. Schwartzfarb do research?
Dmand AI links 2 publications to Dr. Schwartzfarb.
What insurance does Dr. Lanny S. Schwartzfarb accept?
Dr. Schwartzfarb is in network with 15 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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