NPPES file of Aug 9, 2026

Charisse Nisce Siapno, M.D.

Internal Medicine Physician · Phoenix, OR

Charisse Nisce Siapno, M.D. is an internal medicine physician with a practice address in Phoenix, Oregon, and NPI 1720219520, issued on Jul 28, 2009. Check the license (Oregon MD171548, 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
1720219520
Name
Charisse Nisce Siapno
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD171548 OR
099202 OH
Self-reported in NPPES; status is on the state search
Practice location
205 Fern Valley RD Ste A, Phoenix, OR 97535
Phone
(541) 535-1274
Enumerated
Jul 28, 2009
Record last updated
Nov 5, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
500689112 OR
Medicare enrollment
Enrolled (PECOS I20150910001274); accepts Medicare assignment
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 205 Fern Valley RD Ste A

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

  1. Paul Jendre, D.O.Family Medicine Physician1841299393
  2. Eric Webb, MDFamily Medicine Physician1306920087

Verify Charisse Nisce Siapno in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD171548
    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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2.2 times the Medicare Part D claims of the average internal medicine physician in 2024

6,843 Medicare Part D claims for 471 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 59 claims were for opioids.

  1. Charisse Siapno6,843
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium447 claims
  2. Levothyroxine Sodium398 claims
  3. Amlodipine Besylate362 claims
  4. Rosuvastatin Calcium267 claims
  5. Lisinopril245 claims
  6. Omeprazole216 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.

Bills Medicare through one group practice

  1. Providence Health And Services OregonMedford, OR

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

1 internal medicine physician records list a practice address in Phoenix

They are 1 of the 86 NPPES records with a practice address in Phoenix, and 2,116 internal medicine physician records in Oregon.

Other internal medicine physician records in Oregon

  1. Charmaine Clarisse Abalos, M.D.Medford, OR1700376050
  2. Soraya Abbassian, M.D.Portland, OR1225029184
  3. Mohamed Abdel Khalek, M.DRoseburg, OR1972687390
  4. Rand AbedalweliPortland, OR1265019996
  5. Robert Abernathy, M.D.Bend, OR1063433449
  6. Rebecca Abney, D.O.Portland, OR1881984748
  7. Mohamed Aboukhashan, MDMedford, OR1932350782
  8. Allison Abraham, D.O.Portland, OR1831488444
  9. Heidi Abreu Pacheco, M.DMount Angel, OR1669691721
  10. Hennie Abrio, MDRoseburg, OR1891925129

Common questions

What is Charisse Nisce Siapno, M.D.'s NPI number?

Charisse Nisce Siapno, M.D.'s National Provider Identifier (NPI) is 1720219520, issued on Jul 28, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Charisse Nisce Siapno, M.D. located?

The NPPES record lists a practice address at 205 Fern Valley RD Ste A, Phoenix, OR, 97535. Phone: (541) 535-1274. Providers update this record themselves, so call before visiting.

How can I verify Charisse Nisce Siapno, M.D.'s license?

NPPES lists Oregon license number MD171548, 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 Charisse Nisce Siapno, M.D. prescribe under Medicare Part D?

In 2024, Charisse Nisce Siapno, M.D. had 6,843 Medicare Part D claims for 471 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.