Dr. Anna Lef, MD
- Medicare services, 2024
- 1,084
- Medicare patients, 2024
- 308
- Part D claims, 2024
- 5,831
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Practice address
- 550 1st Ave, New York, NY 10016
- Practice phone
- Call (212) 263-1481
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
NYU Langone - Tisch Hospital
New York, New York
Find Dr. Lef'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. Anna Lef is an internist in New York, New York
Dr. Lef practices at NYU Langone - Tisch Hospital in New York, New York.
Dr. Lef's NPI, 1659477321, was assigned on September 16, 2006. Dr. Lef graduated from Icahn School of Medicine at Mount Sinai in 1994. Dr. Lef holds New York license 201280.
- NPI
- 1659477321NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507885753
- NPI enumeration date
- September 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 263-1481
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Anna Lef practices at NYU Langone - Tisch Hospital in New York, New York
Dr. Lef's primary practice is NYU Langone - Tisch Hospital, at 550 1st Ave, New York, NY 10016 in New York County. The practice phone is (212) 263-1481.
- NYU Langone - Tisch Hospital550 1st Ave, New York, NY 10016 · New York CountyPhone(212) 263-1481
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Anna Lef is affiliated with 4 sites of care and 1 medical group
Dr. Lef's primary practice is NYU Langone - Tisch Hospital in New York, New York. Dr. Lef is also affiliated with Tisch Hospital. The medical group on file is NYU Langone Orthopedic Surgery Associates. Dmand AI also links Dr. Lef to 1 more group practice or clinic and 1 home health agency, 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. Anna Lef's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lef practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NYU Langone - Tisch Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Anna Lef is one of 9,643 internists in New York
Internal medicine is Dr. Lef's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lef is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Lef
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. Anna Lef billed Medicare for 1,084 services in 2024
CMS data shows 1,084 Medicare services from Dr. Lef across 13 procedure codes in 2024, for 308 Medicare patients. Medicare paid $69,067 for them. Every service was in an office.
Dr. Lef's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3272024: 37013%
- Surgery
- 2023: 2962024: 32710%
- Other services
- 2023: 1982024: 2096%
- Tests and treatments
- 2023: 1622024: 17810%
Dr. Lef compared with the New York median for internists, 2024
- Dr. Lef
- New York median
- Medicare services
- 1,084vs 4262.5 times
- Medicare patients
- 308vs 15895% above
- Part D claims
- 5,100vs 6228.2 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Lef'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. Lef and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Anna Lef treated 308 Medicare patients in 2024, average age 73
CMS counts 308 Medicare patients who saw Dr. Lef in 2024. The largest group is 65 to 74, with 151 patients. 60% of them have high cholesterol, and 52% have high blood pressure. 27% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lef's median patient age at 58, with 76% women.
Dr. Lef's Medicare patients by age, 2024
Dr. Lef's Medicare patients by sex, 2024
- Women22272%
- Men8628%
Chronic conditions among Dr. Lef's Medicare patients, 2024
- High cholesterol60%
- High blood pressure52%
- Arthritis45%
- Osteoporosis31%
- Anxiety21%
- Diabetes20%
- Cancer19%
- Ischemic heart disease19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lef'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
- Women76%
- Men21%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Anna Lef wrote 5,831 Medicare Part D claims in 2024
In 2024, Dr. Lef wrote 5,831 Medicare Part D claims for 557 patients. 87% of them were for generic drugs. CMS names the drug for 5,100 of them, across 99 drugs with 11 or more claims each, at $256,524 in total drug cost. In 2023, CMS named 4,796 claims across 95 drugs.
Dr. Lef's Part D claims by kind of drug, 2024
- Generic5,064 claims87%
- Brand-name721 claims12%
- Other46 claims1%
Dr. Lef'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. Lef's Part D claims, 2024
- Opioids1%71 of 5,831 claims
- Antibiotics1%44 of 5,831 claims
- Antipsychotics, patients 65 and over0%18 of 5,831 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: 4,7962024: 5,1006%
Drugs named by CMS: 99 in 2024, 95 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. Anna Lef scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Lef for performance year 2024, reported as part of a group. Dr. Lef accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lef as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Lef's MIPS scores, performance year 2024
- 91of 100Final score
- 91.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
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. Anna Lef received $193 in industry payments from 2017 to 2022
CMS Open Payments shows 5 general payments to Dr. Lef from 4 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 88% of the total. Gilead Sciences, Inc. paid the most, $125.
General payments to Dr. Lef by program year, 2017 to 2022
General payments to Dr. Lef by kind, 2017 to 2022
- Food and beverage$17088%
- Education$2312%
Companies that paid Dr. Lef the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Anna Lef graduated from Icahn School of Medicine at Mount Sinai
Dr. Lef graduated from Icahn School of Medicine at Mount Sinai in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Anna Lef'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. Anna Lef
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. Anna Lef's NPI number?
Dr. Anna Lef's NPI number is 1659477321. It was assigned on September 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Anna Lef?
Dr. Anna Lef is an internist in New York, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Anna Lef practice?
Dr. Lef practices at 550 1st Ave, New York, NY 10016. Dr. Lef's primary practice is NYU Langone - Tisch Hospital in New York, New York. Dmand AI also links Dr. Lef to 1 group practice or clinic and 1 home health agency.
What is Dr. Anna Lef's office phone number?
The practice phone on file for Dr. Lef is (212) 263-1481.
What is Dr. Anna Lef's medical license number?
Dr. Lef holds New York license 201280.
Which hospitals is Dr. Anna Lef affiliated with?
Dr. Lef is affiliated with Tisch Hospital.
What medical group is Dr. Anna Lef part of?
Dr. Lef is linked to NYU Langone Orthopedic Surgery Associates.
Does Dr. Anna Lef accept Medicare?
Yes. CMS data shows Dr. Lef billed Medicare for 1,084 services in 2024, and Dr. Lef accepts Medicare assignment.
Does Dr. Anna Lef offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lef as offering telehealth services.
What is Dr. Anna Lef's MIPS score?
Dr. Lef's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Anna Lef see?
CMS counts 308 Medicare patients who saw Dr. Lef in 2024, with an average age of 73.
What services does Dr. Anna Lef bill to Medicare?
In 2024, Dr. Lef's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Anna Lef go to medical school?
Dr. Lef graduated from Icahn School of Medicine at Mount Sinai in 1994.
What drugs does Dr. Anna Lef prescribe most?
In 2024 Medicare Part D data, Dr. Lef's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Anna Lef received payments from drug or device companies?
CMS Open Payments shows $193 in general payments to Dr. Lef from 4 companies from 2017 to 2022. The largest total came from Gilead Sciences, Inc.
How long has Dr. Anna Lef been practicing?
Dr. Lef graduated from medical school in 1994, 32 years ago.
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