NPPES file of Aug 9, 2026

Allan Dierman, APRN

Family Nurse Practitioner · Norwich, CT

Allan Dierman, APRN is a family nurse practitioner with a practice address in Norwich, Connecticut, and NPI 1912458704, issued on Oct 17, 2016. Check the license (Connecticut 6776, as entered in NPPES) with the Connecticut board that licenses this profession; 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
1912458704
Name
Allan Dierman
Credential
APRN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
6776 CT
Self-reported in NPPES; status is on the state search
Practice location
330 Washington St, Norwich, CT 06360
Phone
(860) 885-1308
Enumerated
Oct 17, 2016
Record last updated
Nov 8, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(860) 889-1982
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 330 Washington St

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

  1. Anthony Alessi, MDNeurology Physician1174573612
  2. Anca Bulgaru, MDHematology & Oncology Physician1659356640
  3. Colleen Casey, D. O.Family Medicine Physician1902885338
  4. Thomas Cherry, MDPlastic and Reconstructive Surgery Physician1285662627
  5. David Coletti, MDSurgery Physician1376517730
  6. Gregory Criscuolo, M.D.Neurological Surgery Physician1235170341

Verify Allan Dierman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 6776
    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
Find 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

98% fewer Medicare Part D claims than the average family nurse practitioner in 2024

25 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Allan Dierman25
  2. Specialty average1,305

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.

Allan Dierman among 2,669 family nurse practitioner records in Connecticut

Allan Dierman, APRN is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 37% of them.

  • NPI issued2016 · 37% of these records are older, 59% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2016 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

52 family nurse practitioner records list a practice address in Norwich

They are 52 of the 1,431 NPPES records with a practice address in Norwich, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Donna Civardi, RNFA, APRN, FNP-BCNorwich, CT 063601831230119
  2. Andrea Dameron, APRNNorwich, CT 063601356624027
  3. Melissa Fedell, APRN, BCNorwich, CT 063601154368074
  4. Maura Forte, APRNNorwich, CT 063601952700197
  5. Jeannine Hampton, APRNNorwich, CT 063601366419459
  6. Elizabeth Hathaway, APRNNorwich, CT 063601992037188
  7. Kathi Karp, APRNNorwich, CT 063601265855068
  8. Stacy Marsh, APRNNorwich, CT 063601659433092

Common questions

What is Allan Dierman, APRN's NPI number?

Allan Dierman, APRN's National Provider Identifier (NPI) is 1912458704, issued on Oct 17, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Allan Dierman, APRN located?

The NPPES record lists a practice address at 330 Washington St, Norwich, CT, 06360. Phone: (860) 885-1308. Providers update this record themselves, so call before visiting.

How can I verify Allan Dierman, APRN's license?

NPPES lists Connecticut license number 6776, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Allan Dierman, APRN prescribe under Medicare Part D?

In 2024, Allan Dierman, APRN had 25 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. 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.