Mark Lachs, MD
Geriatric Medicine (Internal Medicine) Physician · New York, NY
Mark Lachs, MD is a geriatric medicine (internal medicine) physician with a practice address in New York, New York, and NPI 1902993082, issued on Oct 9, 2006. Check the license (New York 196398, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark Lachs
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 196398 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1484 1St Ave # 1486, New York, NY 10021
- Phone
- (212) 746-1382
- Enumerated
- Oct 9, 2006
- Record last updated
- Sep 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (212) 746-0450
- Medicaid ID
- 00808439 NY
- Medicare enrollment
- Enrolled (PECOS I20100728000879); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 508 in New York → Look up another NPI →
Also registered at 1484 1St Ave # 1486
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Veronica Lofaso, MDGeriatric Medicine (Internal Medicine) Physician1093802183
- Deirdre Mole, RNGeriatric Medicine (Internal Medicine) Physician1720175896
- Bharathi Raman, MDInternal Medicine Physician1063509131
- Manney Reid, MD, PHDGeriatric Medicine (Internal Medicine) Physician1053408138
Verify Mark Lachs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 196398Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
51 Medicare Part D claims for 20 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Weill Medical College OF CornellNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Lachs among 508 geriatric medicine (internal medicine) physician records in New York
Mark Lachs, MD is one of 508 geriatric medicine (internal medicine) physician records with a practice address in New York. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 47% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1985 · median 1998 among the 272 with a school on file
- Record last updated2011 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in New York
There are 508 geriatric medicine (internal medicine) physician records in New York.
All 508 in New York → Every provider in New York → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Heather Cereste, M.D.New York, NY 100211972572725
- Emily Coskun, MDNew York, NY 100211659876357
- Brian Eiss, M.D.New York, NY 100211629237235
- Veronica Lofaso, MDNew York, NY 100211093802183
- Deirdre Mole, RNNew York, NY 100211720175896
- Manney Reid, MD, PHDNew York, NY 100211053408138
- Xiaoshuang Yin, MDNew York, NY 100211902939432
- Howard Fillit, MDNew York, NY 100221689770141
Common questions
What is Mark Lachs, MD's NPI number?
Mark Lachs, MD's National Provider Identifier (NPI) is 1902993082, issued on Oct 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lachs, MD located?
The NPPES record lists a practice address at 1484 1St Ave # 1486, New York, NY, 10021. Phone: (212) 746-1382. Providers update this record themselves, so call before visiting.
How can I verify Mark Lachs, MD's license?
NPPES lists New York license number 196398, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Lachs, MD prescribe under Medicare Part D?
In 2024, Mark Lachs, MD had 51 Medicare Part D claims for 20 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Mark Lachs, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.