NPPES file of Aug 9, 2026

Song Siameng Jann, PA-C

Medical Physician Assistant · Rancho Cucamonga, CA

Song Siameng Jann, PA-C is a medical physician assistant with a practice address in Rancho Cucamonga, California, and NPI 1114143211, issued on Apr 17, 2007. Check the license (California PA14795, as entered in NPPES) with the California 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
1114143211
Name
Song Siameng Jann
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA14795 CA
Self-reported in NPPES; status is on the state search
Practice location
5131 Nellie CT, Rancho Cucamonga, CA 91739
Phone
(213) 841-4181
Enumerated
Apr 17, 2007
Record last updated
Oct 29, 2023
Medicare enrollment
Enrolled (PECOS I20140617000508); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 1998
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 5131 Nellie CT

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

  1. Jane Himmelvo, M.D.Family Medicine Physician1235170440

Verify Song Siameng Jann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA14795
    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
Find the California license search

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39% fewer Medicare Part D claims than the average medical physician assistant in 2024

705 Medicare Part D claims for 401 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. Song Jann705
  2. Specialty average1,148

Most prescribed

  1. Prednisone70 claims
  2. Cephalexin62 claims
  3. Azithromycin54 claims
  4. Amoxicillin-Clavulanate Potass47 claims
  5. Fluticasone Propionate46 claims
  6. Ibuprofen32 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: $76.83

4 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Song Jann$76.83
  2. Specialty average$1,055.00

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. Emergency Physicians Urgent Care IncMurrieta, CA

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

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

Other medical physician assistant records in California

  1. Bridget Abajian, PA-CLos Angeles, CA1518677061
  2. Crispin Abbott, PHYSICIAN ASSISTANTThousand Oaks, CA1063467926
  3. Abdol Hamid Abdali Hajiabadi, P.A.Santa Ana, CA1285747964
  4. Jilbert Abnoosian, PALynwood, CA1447300314
  5. Reema Aboelrish, PA-CFresno, CA1376466144
  6. Sakina Abowath, P.A.Diamond Bar, CA1326287525
  7. Selin Abraamyan, PA-CGlendale, CA1144795899
  8. Antonious Abraham, PA-CCovina, CA1003434275
  9. Michelle AbrahamSacramento, CA1952875957
  10. Therese Abraham, P.A.-CGlendale, CA1063726586

Common questions

What is Song Siameng Jann, PA-C's NPI number?

Song Siameng Jann, PA-C's National Provider Identifier (NPI) is 1114143211, issued on Apr 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Song Siameng Jann, PA-C located?

The NPPES record lists a practice address at 5131 Nellie CT, Rancho Cucamonga, CA, 91739. Phone: (213) 841-4181. Providers update this record themselves, so call before visiting.

How can I verify Song Siameng Jann, PA-C's license?

NPPES lists California license number PA14795, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Song Siameng Jann, PA-C prescribe under Medicare Part D?

In 2024, Song Siameng Jann, PA-C had 705 Medicare Part D claims for 401 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.