NPPES file of Aug 9, 2026

Rhonda Greifinger, O.D.

Optometrist · Monroe, CT

Rhonda Greifinger, O.D. is an optometrist with a practice address in Monroe, Connecticut, and NPI 1376530915, issued on Sep 29, 2005. Check the license (Connecticut 897, 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
1376530915
Name
Rhonda Greifinger
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
897 CT
Self-reported in NPPES; status is on the state search
Practice location
40 Melon Patch LN, Monroe, CT 06468
Phone
(203) 261-3422
Enumerated
Sep 29, 2005
Record last updated
Jul 13, 2026
Fax
(203) 261-0921
Medicare enrollment
Enrolled (PECOS I20070410000469); accepts Medicare assignment
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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Verify Rhonda Greifinger 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 897
    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
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94% fewer Medicare Part D claims than the average optometrist in 2024

16 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Rhonda Greifinger16
  2. Specialty average277

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.

Bills Medicare through one group practice

  1. Nguyen Eye CareNewtown, CT

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

Rhonda Greifinger among 675 optometrist records in Connecticut

Rhonda Greifinger, O.D. is one of 675 optometrist 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1980 · median 2008 among the 447 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Connecticut

There are 675 optometrist records in Connecticut.

The 8 optometrist records with the nearest ZIP codes

  1. Dennis Iadarola, ODMonroe, CT 064681649251562
  2. Kelly Ferjentsik, O.D.Newtown, CT 064701750614699
  3. Roseann Guglielmo, O.D.Newtown, CT 064701730491903
  4. Vladislav Koyfman, O.D.Newtown, CT 064701811346166
  5. Roger Moore, ODNewtown, CT 064701669476214
  6. Akilia Hang Nguyen, O.D.Newtown, CT 064701932580214
  7. Emma Flor, OD, MPHNorth Haven, CT 064731720657646
  8. David Kraus, O.D.North Haven, CT 064731982707238

Common questions

What is Rhonda Greifinger, O.D.'s NPI number?

Rhonda Greifinger, O.D.'s National Provider Identifier (NPI) is 1376530915, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Rhonda Greifinger, O.D. located?

The NPPES record lists a practice address at 40 Melon Patch LN, Monroe, CT, 06468. Phone: (203) 261-3422. Providers update this record themselves, so call before visiting.

How can I verify Rhonda Greifinger, O.D.'s license?

NPPES lists Connecticut license number 897, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Rhonda Greifinger, O.D. prescribe under Medicare Part D?

In 2024, Rhonda Greifinger, O.D. had 16 Medicare Part D claims; the average among optometrist prescribers was 277. 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.