Samuel Poniachik, M.D
Internal Medicine Physician · San Marcos, CA
Samuel Poniachik, M.D is an internal medicine physician with a practice address in San Marcos, California, and NPI 1467485078, issued on Jul 8, 2006. Check the license (California G74757, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel Poniachik
- Credential
- M.D
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G74757 CA
Self-reported in NPPES; status is on the state search - Practice location
- 150 Valpreda RD, San Marcos, CA 92069
- Phone
- (760) 736-6700
- Enumerated
- Jul 8, 2006
- Record last updated
- Jul 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (760) 736-6795
- Medicare enrollment
- Enrolled (PECOS I20060207000942); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 150 Valpreda RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jannah Alaoui, CNM, RNAdvanced Practice Midwife1689908113
- Wais Alemi, MDFamily Medicine Physician1427305242
- Leon Altamirano, PSY.D.Psychologist1619271517
- Blanca Arias, LCSWClinical Social Worker1033223649
- Lynda Ariella, PHDClinical Psychologist1073518965
- Maria BanuelosCase Manager/Care Coordinator1720280589
Verify Samuel Poniachik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74757Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average internal medicine physician in 2024
12,048 Medicare Part D claims for 525 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 365 claims were for opioids.
Most prescribed
- Atorvastatin Calcium829 claims
- Metformin Hcl518 claims
- Lisinopril492 claims
- Amlodipine Besylate448 claims
- Gabapentin366 claims
- Losartan Potassium344 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: $515.75
32 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, 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.
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
- North County Health Project, Inc.San Marcos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel Poniachik among 17,696 internal medicine physician records in California
Samuel Poniachik, M.D is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1991 · median 2004 among the 11,065 with a school on file
- Record last updated2013 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Marcos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shreya Chandra, MDSan Marcos, CA 920691972519825
- Lauren Jefferis, MDSan Marcos, CA 920691346354776
- Marie Russell, MD.San Marcos, CA 920691609947449
- Arturo Tolentino, M.D.San Marcos, CA 920691609066018
- Izabela Witczak, M.DSan Marcos, CA 920691184735201
- Abbas Ali, M.DSantee, CA 920711104200112
- Azzah Arikat, MDSantee, CA 920711184971640
- David Corbin, MDSantee, CA 920711275627200
Common questions
What is Samuel Poniachik, M.D's NPI number?
Samuel Poniachik, M.D's National Provider Identifier (NPI) is 1467485078, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Poniachik, M.D located?
The NPPES record lists a practice address at 150 Valpreda RD, San Marcos, CA, 92069. Phone: (760) 736-6700. Providers update this record themselves, so call before visiting.
How can I verify Samuel Poniachik, M.D's license?
NPPES lists California license number G74757, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Samuel Poniachik, M.D prescribe under Medicare Part D?
In 2024, Samuel Poniachik, M.D had 12,048 Medicare Part D claims for 525 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.