NPPES file of Aug 9, 2026

Robert Michael Klein, M.D.

Allergy Physician · New York, NY

Robert Michael Klein, M.D. is an allergy physician with a practice address in New York, New York, and NPI 1235196452, issued on May 1, 2006. Check the license (New York 131109, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235196452
Name
Robert Michael Klein
Credential
M.D.
Primary taxonomy
Allergy Physician 207KA0200X
License numbers
131109 NY
MA33401 NJ
Self-reported in NPPES; status is on the state search
Practice location
3959 Broadway, New York, NY 10032
Phone
(212) 305-2300
Enumerated
May 1, 2006
Record last updated
Jul 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(212) 305-4538
Medicaid ID
1826808 NJ
Medicare enrollment
Enrolled (PECOS I20110113000214); accepts Medicare assignment
Medical or professional school
New York Medical College, 1976
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3959 Broadway

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Manar Abdalgani, MBBSAllergy & Immunology Physician1154671873
  2. Danielle Abraham, MDStudent in an Organized Health Care Education/Training Program1649111691
  3. Maria Cecilia Abreu GonzalezStudent in an Organized Health Care Education/Training Program1770423204
  4. Paris AcquaroStudent in an Organized Health Care Education/Training Program1194665828
  5. Linda AddonizioPediatric Cardiology Physician1639143779
  6. Mishuka AdhikaryPediatrics Physician1558762161

Verify Robert Michael Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 131109
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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71% fewer Medicare Part D claims than the average allergy physician in 2024

221 Medicare Part D claims for 78 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.

  1. Robert Klein221
  2. Specialty average750

Most prescribed

  1. Albuterol Sulfate Hfa19 claims
  2. Azelastine Hcl18 claims
  3. Breo Ellipta17 claims
  4. Dupixent Syringe13 claims
  5. Prednisone13 claims
  6. Betamethasone Dipropionate11 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.

Industry payments in 2024: $1,114.58

32 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 502 providers of this specialty with any payment received $9,080.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Klein$1,114.58
  2. Specialty average$9,080.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Jeffrey Weiss, M.D., P.A.Riverdale, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robert Michael Klein among 109 allergy physician records in New York

Robert Michael Klein, M.D. is one of 109 allergy physician records with a practice address in New York. 70% 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 27% of them.

  • NPI issued2006 · 27% of these records are older, 30% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1976 · median 1990 among the 58 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X 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 Physician providers in New York

There are 109 allergy physician records in New York.

The 8 allergy physician records with the nearest ZIP codes

  1. Rachel Miller, M.D.New York, NY 100291235297243
  2. Morton Teich, M.D.New York, NY 100281740347202
  3. Lisa Ellman-Grunther, M.D.New York, NY 100381336107325
  4. Usha Sundaram, M.D.New York, NY 100251568513539
  5. Ira Finegold, M.D.New York, NY 100221902982085
  6. Vahid Rahimian, DONew York, NY 100221659683902
  7. Rushita Mehta, MDNew York, NY 100211316205396
  8. Gillian Shepherd, M.D.New York, NY 100211720161367

Common questions

What is Robert Michael Klein, M.D.'s NPI number?

Robert Michael Klein, M.D.'s National Provider Identifier (NPI) is 1235196452, issued on May 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Michael Klein, M.D. located?

The NPPES record lists a practice address at 3959 Broadway, New York, NY, 10032. Phone: (212) 305-2300. Providers update this record themselves, so call before visiting.

How can I verify Robert Michael Klein, M.D.'s license?

NPPES lists New York license number 131109, 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 Robert Michael Klein, M.D. prescribe under Medicare Part D?

In 2024, Robert Michael Klein, M.D. had 221 Medicare Part D claims for 78 beneficiaries; the average among allergy physician prescribers was 750. 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.