Newton S. Phuong, M.D.
Internal Medicine Physician · Bakersfield, CA
Newton S. Phuong, M.D. is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1194102137, issued on Apr 29, 2015. Check the license (California A148290, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Newton S. Phuong
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A148290 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5020 Commerce Dr, Bakersfield, CA 93309
- Phone
- (661) 324-4100
- Enumerated
- Apr 29, 2015
- Record last updated
- Jun 6, 2023
- Fax
- (661) 324-4600
- Medicare enrollment
- Enrolled (PECOS I20221206003320); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2015
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5020 Commerce Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Newton S. Phuong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A148290Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,708 Medicare Part D claims for 349 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Atorvastatin Calcium331 claims
- Furosemide219 claims
- Eliquis136 claims
- Carvedilol92 claims
- Clopidogrel83 claims
- Rosuvastatin Calcium75 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $413.54
10 payments; by number, the most common kind was food and beverage; the largest payer was Kiniksa Pharmaceuticals International, plc. 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
- Silver Summit Medical CorporationBakersfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Newton S. Phuong among 17,696 internal medicine physician records in California
Newton S. Phuong, 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 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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).
214 internal medicine physician records list a practice address in Bakersfield
They are 214 of the 11,539 NPPES records with a practice address in Bakersfield, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Bakersfield → Internal Medicine Physician nationwide →
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- Thin Han, M.D.Bakersfield, CA 933091356319826
- Joseph Hayes, D.O.Bakersfield, CA 933091083681498
- Rusong Huang, MDBakersfield, CA 933091598767949
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- Mark Lin, MDBakersfield, CA 933091528050754
Common questions
What is Newton S. Phuong, M.D.'s NPI number?
Newton S. Phuong, M.D.'s National Provider Identifier (NPI) is 1194102137, issued on Apr 29, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Newton S. Phuong, M.D. located?
The NPPES record lists a practice address at 5020 Commerce Dr, Bakersfield, CA, 93309. Phone: (661) 324-4100. Providers update this record themselves, so call before visiting.
How can I verify Newton S. Phuong, M.D.'s license?
NPPES lists California license number A148290, 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 Newton S. Phuong, M.D. prescribe under Medicare Part D?
In 2024, Newton S. Phuong, M.D. had 1,708 Medicare Part D claims for 349 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Newton S. Phuong, M.D.'s MIPS final score?
The 2023 MIPS final score is 88.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.