Registry data as of Aug 27, 2026

Irene Irby, NP

Critical Care Medicine Nurse Practitioner · Annapolis, MD

Irene Irby, NP is a critical care medicine nurse practitioner with a practice address in Annapolis, Maryland, and NPI 1477792604, issued on Feb 11, 2009. Check the license with the Maryland board that licenses this profession; 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
1477792604
Name
Irene Irby
Credential
NP
Primary taxonomy
Critical Care Medicine Nurse Practitioner 363LC0200X
Practice location
108 Forbes St, Annapolis, MD 21401
Phone
(410) 571-7880
Enumerated
Feb 11, 2009
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.
Download card Updates feed

Also registered at 108 Forbes St

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

  1. Feven Abraha, PTPhysical Therapist1043285059
  2. Joan Cantero-Lakhanpal, MDEndocrinology, Diabetes & Metabolism Physician1780683813
  3. Ilana Cohen, M.D.Endocrinology, Diabetes & Metabolism Physician1669413076
  4. Melissa Lambiasi, DPTOrthopedic Physical Therapist1801086160
  5. Darshana Purohit, MDInternal Medicine Physician1346383031
  6. Frank Rath, PTPhysical Therapist1336119908

Verify Irene Irby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck 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
Find the Maryland 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.

46% more Medicare Part D claims than the average critical care medicine nurse practitioner in 2024

622 Medicare Part D claims for 184 beneficiaries, against an average of 425 among the 446 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.

  1. Irene Irby622
  2. Specialty average425

Most prescribed

  1. Levothyroxine Sodium104 claims
  2. Mounjaro47 claims
  3. Metformin Hcl45 claims
  4. Ozempic38 claims
  5. Jardiance27 claims
  6. Nano 2nd Gen Pen Needle27 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.

Critical Care Medicine Nurse Practitioner providers in Maryland

There are 24 critical care medicine nurse practitioner records in Maryland.

Other critical care medicine nurse practitioner records in Maryland

  1. Rita Abu-Jaber, CRNPBaltimore, MD1386967545
  2. Lissa Andrakakos, CRNPRockville, MD1639192768
  3. Kimberly Bowers, RN ACNPBaltimore, MD1710153820
  4. Jamie Bowman, DNP, ACNPAnnapolis, MD1972089589
  5. Erin Desalvo, CRNPBaltimore, MD1841475092
  6. Amira Dewitt, APRNClinton, MD1457242273
  7. Melissa Donelson, CRNPGlen Burnie, MD1558343236
  8. Karen Elias Valladares, CRNPBaltimore, MD1023688017
  9. John Hagan, CRNPBaltimore, MD1740489970
  10. Titilola IyunColumbia, MD1538526074

Common questions

What is Irene Irby, NP's NPI number?

Irene Irby, NP's National Provider Identifier (NPI) is 1477792604, issued on Feb 11, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Irene Irby, NP located?

The NPPES record lists a practice address at 108 Forbes St, Annapolis, MD, 21401. Phone: (410) 571-7880. Providers update this record themselves, so call before visiting.

How can I verify Irene Irby, NP's license?

Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Irene Irby, NP prescribe under Medicare Part D?

In 2024, Irene Irby, NP had 622 Medicare Part D claims for 184 beneficiaries; the average among critical care medicine nurse practitioner prescribers was 425. 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.