Registry data as of Aug 27, 2026

Debra Adler-Klein, MD

Infectious Disease Physician · Danbury, CT

Debra Adler-Klein, MD is an infectious disease physician with a practice address in Danbury, Connecticut, and NPI 1245278886, issued on Jun 4, 2006. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1245278886
Name
Debra Adler-Klein
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
Practice location
79 Sand Pit RD, Danbury, CT 06810
Phone
(203) 749-5700
Enumerated
Jun 4, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 79 Sand Pit RD

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

  1. Joann Ahern, APRNMedical-Surgical Clinical Nurse Specialist1770566317
  2. Bailey Gartman, LCSW, AADCAddiction (Substance Use Disorder) Counselor1083344683
  3. Iris Gilligan, LCSWClinical Social Worker1700247889
  4. Buddhini Gurusinghe, M.D.Internal Medicine Physician1992019723
  5. Stacey Lombardo, DNP, APRN, NP-CAdult Health Nurse Practitioner1891245916
  6. Guarina Molina, MDStudent in an Organized Health Care Education/Training Program1700465341

Verify Debra Adler-Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck 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 Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

6% fewer Medicare Part D claims than the average infectious disease physician in 2024

760 Medicare Part D claims for 87 beneficiaries, against an average of 807 among the 5,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Debra Adler-Klein760
  2. Specialty average807

Most prescribed

  1. Atorvastatin Calcium53 claims
  2. Amlodipine Besylate51 claims
  3. Lisinopril46 claims
  4. Albuterol Sulfate Hfa35 claims
  5. Metformin Hcl30 claims
  6. Rosuvastatin Calcium29 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.

One hospital or facility affiliation

  1. Optimus Health Care IncBridgeport, CT

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Infectious Disease Physician providers in Connecticut

There are 171 infectious disease physician records in Connecticut.

Other infectious disease physician records in Connecticut

  1. Jessica Abrantes-Figueiredo, M.D.Southington, CT1962761569
  2. Kenneth Abriola, MDGlastonbury, CT1083693022
  3. Amit Achhra, M.D., PHDNew Haven, CT1578918231
  4. Adekola Adedeji, MD, MPHBridgeport, CT1285190843
  5. Sharjeel Ahmad, M.D.Hartford, CT1568672426
  6. Alina Alfirii, MDHamden, CT1487687570
  7. Frederick Altice, MDNew Haven, CT1710960158
  8. Paul Anthony, M.D.Hartford, CT1912156597
  9. Lydia Aoun-Barakat, MDWaterbury, CT1033183355
  10. Steven Aronin, MDWaterbury, CT1164495875

Common questions

What is Debra Adler-Klein, MD's NPI number?

Debra Adler-Klein, MD's National Provider Identifier (NPI) is 1245278886, issued on Jun 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Debra Adler-Klein, MD located?

The NPPES record lists a practice address at 79 Sand Pit RD, Danbury, CT, 06810. Phone: (203) 749-5700. Providers update this record themselves, so call before visiting.

How can I verify Debra Adler-Klein, MD's license?

Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Debra Adler-Klein, MD prescribe under Medicare Part D?

In 2024, Debra Adler-Klein, MD had 760 Medicare Part D claims for 87 beneficiaries; the average among infectious disease physician prescribers was 807. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.