NPPES file of Aug 9, 2026

Amber Messitt, DO

Internal Medicine Physician · Johnston, RI

Amber Messitt, DO is an internal medicine physician with a practice address in Johnston, Rhode Island, and NPI 1306157730, issued on Jun 30, 2010. Check the license (Rhode Island DO00718, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; 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
1306157730
Name
Amber Messitt
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
DO00718 RI
Self-reported in NPPES; status is on the state search
Practice location
1539 Atwood Ave, Johnston, RI 02919
Phone
(401) 272-3410
Enumerated
Jun 30, 2010
Record last updated
Oct 9, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(401) 272-3417
Medicare enrollment
Enrolled (PECOS I20130920000194); accepts Medicare assignment
Medical or professional school
University Of New England, College Of Osteo Medicine, 2010
Telehealth
Offers telehealth (CMS)
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 1539 Atwood Ave

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

  1. Lucas Ackermann, DPTPhysical Therapist1336826320
  2. Lucinda Barnard, MDEndocrinology, Diabetes & Metabolism Physician1457496143
  3. Michael BiscontiPhysical Therapist1215452776
  4. David Dixon, PTPhysical Therapist1861379299
  5. Christopher Ferri, D.OInternal Medicine Physician1952740250
  6. Fred Ferri, MDInternal Medicine Physician1013903400

Verify Amber Messitt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
    Search for license DO00718
    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 Rhode Island 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.

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13% more Medicare Part D claims than the average internal medicine physician in 2024

3,588 Medicare Part D claims for 298 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Amber Messitt3,588
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium316 claims
  2. Losartan Potassium219 claims
  3. Levothyroxine Sodium207 claims
  4. Lisinopril124 claims
  5. Amlodipine Besylate120 claims
  6. Omeprazole119 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: $225.55

9 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Amber Messitt$225.55
  2. Specialty average$1,303.06

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. Ocean State Medical, LLCJohnston, RI

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

Amber Messitt among 1,033 internal medicine physician records in Rhode Island

Amber Messitt, DO is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 49% of them.

  • NPI issued2010 · 49% of these records are older, 49% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2010 · median 2006 among the 590 with a school on file
  • Record last updated2013 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 internal medicine physician records list a practice address in Johnston

They are 18 of the 561 NPPES records with a practice address in Johnston, and 1,033 internal medicine physician records in Rhode Island.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marcel Bavoux, D.O.Johnston, RI 029191508990557
  2. William Beliveau, MDJohnson, RI 029191578588067
  3. P Canchis, MDJohnston, RI 029191518018811
  4. Angelo Dicenso, M.D.Johnston, RI 029191952395022
  5. Fred Ferri, MDJohnston, RI 029191013903400
  6. Vito Ferri, D.O.Johnston, RI 029191518288075
  7. Christopher Ferri, D.OJohnston, RI 029191952740250
  8. Kathleen Gordon, DOJohnston, RI 029191861417354

Common questions

What is Amber Messitt, DO's NPI number?

Amber Messitt, DO's National Provider Identifier (NPI) is 1306157730, issued on Jun 30, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Amber Messitt, DO located?

The NPPES record lists a practice address at 1539 Atwood Ave, Johnston, RI, 02919. Phone: (401) 272-3410. Providers update this record themselves, so call before visiting.

How can I verify Amber Messitt, DO's license?

NPPES lists Rhode Island license number DO00718, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Amber Messitt, DO prescribe under Medicare Part D?

In 2024, Amber Messitt, DO had 3,588 Medicare Part D claims for 298 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.