Dr. Jonathan Saul Lown, MD

  • Brooklyn, NY
  • Internist
NPI1265538458PAC ID2567449887
Medicare services, 2024
11,461
Medicare patients, 2024
477
Part D claims, 2024
9,448
MIPS score, 2024
88
Hospital affiliations
3
Practice address
63 Flushing Avenue, Building 292, Brooklyn, NY 11205
Practice phone
Call (718) 435-7200
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Sherman Abrams Lab

Clinical Lab - Full Service · Brooklyn, New York

See all 10 affiliations

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Dr. Jonathan Saul Lown is an internist in Brooklyn, New York

Dr. Lown practices at Sherman Abrams Lab in Brooklyn, New York.

Dr. Lown's NPI, 1265538458, was assigned on September 15, 2006. Dr. Lown graduated from State University of New York Downstate Medical Center College of Medicine in 1995. Dr. Lown holds New York license 204673-1.

NPI and contact details
Medicare PAC ID
2567449887
NPI enumeration date
September 15, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(718) 435-7200
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
57
Medical school graduation
1995

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Jonathan Saul Lown practices at Sherman Abrams Lab in Brooklyn, New York

Dr. Lown's primary practice is Sherman Abrams Lab, at 63 Flushing Avenue, Building 292, Brooklyn, NY 11205. The practice phone is (718) 435-7200.

  • Sherman Abrams Lab
    63 Flushing Avenue, Building 292, Brooklyn, NY 11205Phone(718) 435-7200

Source: Dmand AI Affiliation Data

Dr. Jonathan Saul Lown is affiliated with 8 sites of care and 2 medical groups

Dr. Lown's primary practice is Sherman Abrams Lab in Brooklyn, New York. Dr. Lown is also affiliated with North Shore University Hospital. The medical group on file is New York Cancer & Blood Specialists. Dmand AI also links Dr. Lown to 2 more hospitals, 3 home health agencies, 1 physician office and 1 medical group, each named with a free account.

See all 10 affiliations for Dr. Lown

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Jonathan Saul Lown's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lown practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Sherman Abrams LabAvailable with a free account
+7 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Jonathan Saul Lown is one of 9,643 internists in New York

Internal medicine is Dr. Lown's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lown is licensed in New York.

Specialties and state licenses

  • Internal medicine, New YorkPrimaryLicense 204673-1 · taxonomy 207R00000X

Internists near Dr. Lown

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. Jonathan Saul Lown billed Medicare for 11,461 services in 2024

CMS data shows 11,461 Medicare services from Dr. Lown across 40 procedure codes in 2024, for 477 Medicare patients. Medicare paid $349,194 for them. Every service was in an office.

Medicare services, 202411,461
Medicare patients477
Paid by Medicare$349,194
Procedure codes40

Dr. Lown's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 3,7832024: 6,73778%
Office and hospital visits
2023: 1,9602024: 1,8456%
Tests and treatments
2023: 1,1152024: 1,0486%
Surgery
2023: 6512024: 77619%
Other services
2023: 1902024: 711274%
Lab and pathology
2023: 4752024: 34428%
Imaging
2023: 302024: 0100%

Dr. Lown compared with the New York median for internists, 2024

  • Dr. Lown
  • New York median
Medicare services
11,461vs 42626.9 times
Medicare patients
477vs 1583.0 times
Part D claims
8,591vs 62213.8 times

Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.

Dr. Lown'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.

See all procedures by Dr. Lown

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Jonathan Saul Lown treated 477 Medicare patients in 2024, average age 75

CMS counts 477 Medicare patients who saw Dr. Lown in 2024. The largest group is 65 to 74, with 198 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lown's median patient age at 62, with 44% women.

Medicare patients, 2024477
Average age75
Average risk score1.23
Also on Medicaid4%

Dr. Lown's Medicare patients by age, 2024

Dr. Lown's Medicare patients by sex, 2024

  • Women19641%
  • Men28159%

Chronic conditions among Dr. Lown's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes67%
  4. Ischemic heart disease65%
  5. Arthritis55%
  6. Anxiety25%
  7. Atrial fibrillation24%
  8. Osteoporosis24%

Share of Medicare patients with each condition. A patient can have several.

Dr. Lown's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women44%
  • Men53%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Jonathan Saul Lown wrote 9,448 Medicare Part D claims in 2024

In 2024, Dr. Lown wrote 9,448 Medicare Part D claims for 431 patients. 69% of them were for generic drugs. CMS names the drug for 8,591 of them, across 164 drugs with 11 or more claims each, at $2,475,890 in total drug cost. In 2023, CMS named 8,029 claims across 156 drugs.

Part D claims, 20249,448
Drugs named by CMS164
Total drug cost$2.5M
Part D patients431

Dr. Lown's Part D claims by kind of drug, 2024

  • Generic6,530 claims69%
  • Brand-name2,869 claims30%
  • Other49 claims1%

Dr. Lown'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. Lown's Part D claims, 2024

  • Opioids1%109 of 9,448 claims
  • Antibiotics3%264 of 9,448 claims
  • Antipsychotics, patients 65 and over1%81 of 9,448 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: 8,0292024: 8,5917%

Drugs named by CMS: 164 in 2024, 156 in 2023.

See all prescribing by Dr. Lown

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. Jonathan Saul Lown scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Lown for performance year 2024, reported individually. Dr. Lown accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lown as offering telehealth. CMS counts 70 procedures of removal of tissue by Dr. Lown, more than 82% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Lown's MIPS scores, performance year 2024

  • 88of 100Final score
  • 97.3of 100Quality
  • 40of 100Improvement Activities
  • 64of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Lown ranks in Medicare procedure volume

Removal of tissue
82nd percentile70 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Jonathan Saul Lown received $360,733 in industry payments from 2016 to 2025

CMS Open Payments shows 2,518 general payments to Dr. Lown from 94 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 67% of the total. Esperion Therapeutics, Inc. paid the most, $171,655.

General payments to Dr. Lown by program year, 2016 to 2025

General payments to Dr. Lown by kind, 2016 to 2025

$360.7Kin total
  • Speaker and faculty fees$240,24867%
  • Food and beverage$51,69214%
  • Travel and lodging$43,02412%
  • Consulting fees$15,7514%
  • Other$9,7483%

Companies that paid Dr. Lown the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Lown

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Jonathan Saul Lown graduated from State University of New York Downstate Medical Center College of Medicine

Dr. Lown graduated from State University of New York Downstate Medical Center College of Medicine in 1995.

  1. Medical schoolState University of New York Downstate Medical Center College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Jonathan Saul Lown's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Jonathan Saul Lown

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. Jonathan Saul Lown's NPI number?

Dr. Jonathan Saul Lown's NPI number is 1265538458. It was assigned on September 15, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Jonathan Saul Lown?

Dr. Jonathan Saul Lown is an internist in Brooklyn, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Jonathan Saul Lown practice?

Dr. Lown practices at 63 Flushing Avenue, Building 292, Brooklyn, NY 11205. Dr. Lown's primary practice is Sherman Abrams Lab in Brooklyn, New York. Dmand AI also links Dr. Lown to 2 hospitals, 3 home health agencies, 1 physician office and 1 medical group.

What is Dr. Jonathan Saul Lown's office phone number?

The practice phone on file for Dr. Lown is (718) 435-7200.

What is Dr. Jonathan Saul Lown's medical license number?

Dr. Lown holds New York license 204673-1.

Which hospitals is Dr. Jonathan Saul Lown affiliated with?

Dr. Lown is affiliated with North Shore University Hospital. Dmand AI links Dr. Lown to 2 more hospitals.

What medical group is Dr. Jonathan Saul Lown part of?

Dr. Lown is linked to New York Cancer & Blood Specialists. Dmand AI links Dr. Lown to 1 more medical group.

Does Dr. Jonathan Saul Lown accept Medicare?

Yes. CMS data shows Dr. Lown billed Medicare for 11,461 services in 2024, and Dr. Lown accepts Medicare assignment.

Does Dr. Jonathan Saul Lown offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Lown as offering telehealth services.

What is Dr. Jonathan Saul Lown's MIPS score?

Dr. Lown's MIPS final score for performance year 2024 is 88 out of 100, reported individually.

Show 6 more questionsShow fewer questions

How many Medicare patients does Dr. Jonathan Saul Lown see?

CMS counts 477 Medicare patients who saw Dr. Lown in 2024, with an average age of 75.

What services does Dr. Jonathan Saul Lown bill to Medicare?

In 2024, Dr. Lown's most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99214) and office visit, established patient (99215).

Where did Dr. Jonathan Saul Lown go to medical school?

Dr. Lown graduated from State University of New York Downstate Medical Center College of Medicine in 1995.

What drugs does Dr. Jonathan Saul Lown prescribe most?

In 2024 Medicare Part D data, Dr. Lown's most prescribed drugs by claims were Mounjaro, Ezetimibe and Rosuvastatin Calcium.

Has Dr. Jonathan Saul Lown received payments from drug or device companies?

CMS Open Payments shows $360,733 in general payments to Dr. Lown from 94 companies from 2016 to 2025. The largest total came from Esperion Therapeutics, Inc.

How long has Dr. Jonathan Saul Lown been practicing?

Dr. Lown graduated from medical school in 1995, 31 years ago.

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