NPPES file of Aug 9, 2026

Andrea R. Rizzo, MD

Internal Medicine Physician · Sudbury, MA

Andrea R. Rizzo, MD is an internal medicine physician with a practice address in Sudbury, Massachusetts, and NPI 1558351676, issued on Oct 28, 2005. Check the license (Massachusetts 56243, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1558351676
Name
Andrea R. Rizzo
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
56243 MA
Self-reported in NPPES; status is on the state search
Practice location
490 Boston Post RD, Sudbury, MA 01776
Phone
(978) 443-6086
Enumerated
Oct 28, 2005
Record last updated
May 26, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(978) 287-7856
Medicaid ID
1211382 MA
Medicare enrollment
Enrolled (PECOS I20040520000940); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 1983
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 490 Boston Post RD

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

  1. Andrea Bertorelli, CPNPNurse Practitioner1164655502
  2. Lauren CostedioSpeech-Language Pathologist1205539962
  3. Dana Freier, PNPPediatric Adolescent Medicine Physician1659507549
  4. Amika JastyOccupational Therapist1265111728
  5. Allison Kobielski, OTR/LOccupational Therapist1245967421
  6. Randall McShine, M.D.Internal Medicine Physician1770698664

Verify Andrea R. Rizzo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 56243
    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 Massachusetts 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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14% more Medicare Part D claims than the average internal medicine physician in 2024

3,635 Medicare Part D claims for 562 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 207 claims were for opioids.

  1. Andrea Rizzo3,635
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium163 claims
  2. Levothyroxine Sodium137 claims
  3. Gabapentin129 claims
  4. Lisinopril113 claims
  5. Sertraline Hcl107 claims
  6. Amlodipine Besylate101 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: $280.12

12 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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. Andrea Rizzo$280.12
  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. Emerson Practice Associates, IncSudbury, MA

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

Andrea R. Rizzo among 6,825 internal medicine physician records in Massachusetts

Andrea R. Rizzo, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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, 88% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1983 · median 2004 among the 4,103 with a school on file
  • Record last updated2011 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 internal medicine physician records list a practice address in Sudbury

They are 7 of the 281 NPPES records with a practice address in Sudbury, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Paula Jo Carbone, M.D.,M.B.A.Sudbury, MA 017761942318449
  2. Arthur Freedman, M.D.Sudbury, MA 017761295878775
  3. Jay Krasner, MDSudbury, MA 017761316950751
  4. Randall McShine, M.D.Sudbury, MA 017761770698664
  5. Bradford NaviaSudbury, MA 017761376925115
  6. Julia Reznik, M.D.Sudbury, MA 017761992072334
  7. Molly Kurian, M.DStow, MA 017751871703637
  8. Kimberly Buckman, M.D.Wayland, MA 017781699793786

Common questions

What is Andrea R. Rizzo, MD's NPI number?

Andrea R. Rizzo, MD's National Provider Identifier (NPI) is 1558351676, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Andrea R. Rizzo, MD located?

The NPPES record lists a practice address at 490 Boston Post RD, Sudbury, MA, 01776. Phone: (978) 443-6086. Providers update this record themselves, so call before visiting.

How can I verify Andrea R. Rizzo, MD's license?

NPPES lists Massachusetts license number 56243, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Andrea R. Rizzo, MD prescribe under Medicare Part D?

In 2024, Andrea R. Rizzo, MD had 3,635 Medicare Part D claims for 562 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.