Sigmund Friedman, MD
Allergy & Immunology Physician · Brooklyn, NY
Sigmund Friedman, MD is an allergy & immunology physician with a practice address in Brooklyn, New York, and NPI 1558438796, issued on Nov 30, 2006. Check the license (New York 124838, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Sigmund Friedman
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 124838 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1421 48TH St, Brooklyn, NY 11219
- Phone
- (718) 435-6857
- Enumerated
- Nov 30, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (718) 435-3929
- Medicaid ID
- 00233798 NY
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 311 in New York → Look up another NPI →
Also registered at 1421 48TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Solomon Singer, D.P.M.Primary Podiatric Medicine Podiatrist1003955790
Verify Sigmund Friedman 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 124838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
111 Medicare Part D claims for 38 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D.
Most prescribed
- Levocetirizine Dihydrochloride39 claims
- Omeprazole13 claims
- Ipratropium Bromide12 claims
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.
Sigmund Friedman among 311 allergy & immunology physician records in New York
Sigmund Friedman, MD is one of 311 allergy & immunology physician records with a practice address in New York. 84% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2007 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in New York
There are 311 allergy & immunology physician records in New York.
All 311 in New York → Every provider in Brooklyn → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Edward KleimanBrooklyn, NY 112181306073291
- Allen Weiss, M.D.Brooklyn, NY 112181720239809
- Andrea Burke, MDBrooklyn, NY 112171356833529
- Catherine Popadiuk, DOBrooklyn, NY 112171689962474
- Michael Richheimer, MDBrooklyn, NY 112221285614107
- Violetta Zaleska, MDBrooklyn, NY 112221497821227
- Payel Gupta, MDBrooklyn, NY 112151457533077
- Norman KleinBrooklyn, NY 112121184668220
Common questions
What is Sigmund Friedman, MD's NPI number?
Sigmund Friedman, MD's National Provider Identifier (NPI) is 1558438796, issued on Nov 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sigmund Friedman, MD located?
The NPPES record lists a practice address at 1421 48TH St, Brooklyn, NY, 11219. Phone: (718) 435-6857. Providers update this record themselves, so call before visiting.
How can I verify Sigmund Friedman, MD's license?
NPPES lists New York license number 124838, 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 Sigmund Friedman, MD prescribe under Medicare Part D?
In 2024, Sigmund Friedman, MD had 111 Medicare Part D claims for 38 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
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.