NPPES file of Aug 9, 2026

Andrea Harrell Chiavarini, MD

Addiction Medicine (Preventive Medicine) Physician · Portland, OR

Andrea Harrell Chiavarini, MD is an addiction medicine (preventive medicine) physician with a practice address in Portland, Oregon, and NPI 1255536405, issued on Jun 18, 2007. Check the license (Oregon MD27441, as entered in NPPES) on the Oregon Medical Board; 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
1255536405
Name
Andrea Harrell Chiavarini
Credential
MD
Primary taxonomy
Addiction Medicine (Preventive Medicine) Physician 2083A0300X
License numbers
MD27441 OR
MD60170852 WA
Self-reported in NPPES; status is on the state search
Practice location
1535 N Williams Ave, Portland, OR 97227
Phone
(503) 238-2067
Enumerated
Jun 18, 2007
Record last updated
Jul 14, 2025
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.
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6 nearest addiction medicine (preventive medicine) physician records → All 7 in Oregon → Look up another NPI →

Also registered at 1535 N Williams Ave

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

  1. Nicole AguilarRegistered Nurse1164076923
  2. Jerry AllenPeer Specialist1356076020
  3. Dustin AndersonAddiction (Substance Use Disorder) Counselor1427837525
  4. Ian AndersonRegistered Nurse1164013082
  5. Zoe Arends-Derning, R.N.Registered Nurse1164894960
  6. Jose ArmentaRegistered Nurse1366321317

Verify Andrea Harrell Chiavarini in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD27441    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 Oregon license search

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84% fewer Medicare Part D claims than the average addiction medicine (preventive medicine) physician in 2024

67 Medicare Part D claims for 20 beneficiaries, against an average of 420 among the 224 providers of this specialty who prescribed in Part D.

  1. Andrea Chiavarini67
  2. Specialty average420

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: $36.79

1 payment: food and beverage; the largest payer was Indivior Inc. The 112 providers of this specialty with any payment received $596.46 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrea Chiavarini$36.79
  2. Specialty average$596.46

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Addiction Medicine (Preventive Medicine) Physician providers in Oregon

There are 7 addiction medicine (preventive medicine) physician records in Oregon.

All 7 in Oregon → Every provider in Portland → Addiction Medicine (Preventive Medicine) Physician nationwide →

The 6 addiction medicine (preventive medicine) physician records with the nearest ZIP codes

  1. John Hardy, MDPortland, OR 972181942522388
  2. Honora Englander, MDPortland, OR 972391649226994
  3. Patricia Liu, MDPortland, OR 972391558723460
  4. Craig Turner, MDPortland, OR 972091154460780
  5. Andrew Friede, MD, MPHPortland, OR 972041063979060
  6. Carlos JohnsonSalem, OR 973051285443325

Common questions

What is Andrea Harrell Chiavarini, MD's NPI number?

Andrea Harrell Chiavarini, MD's National Provider Identifier (NPI) is 1255536405, issued on Jun 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Andrea Harrell Chiavarini, MD located?

The NPPES record lists a practice address at 1535 N Williams Ave, Portland, OR, 97227. Phone: (503) 238-2067. Providers update this record themselves, so call before visiting.

How can I verify Andrea Harrell Chiavarini, MD's license?

NPPES lists Oregon license number MD27441, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Andrea Harrell Chiavarini, MD prescribe under Medicare Part D?

In 2024, Andrea Harrell Chiavarini, MD had 67 Medicare Part D claims for 20 beneficiaries; the average among addiction medicine (preventive medicine) physician prescribers was 420. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.