Benjamin Weizer Chang
Nurse Practitioner · Fremont, CA
Benjamin Weizer Chang is a nurse practitioner with a practice address in Fremont, California, and NPI 1952780652, issued on May 27, 2015. Check the license (California 95002080, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Benjamin Weizer Chang
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 95002080 CA
Self-reported in NPPES; status is on the state search - Practice location
- 39180 Farwell Dr, Fremont, CA 94538
- Phone
- (510) 585-2545
- Enumerated
- May 27, 2015
- Record last updated
- May 27, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150804006293); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 39180 Farwell Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michelle Jay, P.T.Physical Therapist1790194785
- Geeta Nasika, PTOrthopedic Physical Therapist1457681769
- Brittney NicholsOccupational Therapist1841591203
Verify Benjamin Weizer Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95002080Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average nurse practitioner in 2024
305 Medicare Part D claims for 109 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium24 claims
- Albuterol Sulfate Hfa11 claims
- Doxycycline Hyclate11 claims
- Fluticasone Propionate11 claims
- Paxlovid11 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
- Sutter Bay Medical FoundationSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin Weizer Chang among 8,223 nurse practitioner records in California
Benjamin Weizer Chang is one of 8,223 nurse practitioner records with a practice address in California. 65% 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 45% of them.
- NPI issued2015 · 45% of these records are older, 52% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2014 · median 2017 among the 3,425 with a school on file
- Record last updated2015 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Fremont → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Joanne Andrego, NPFremont, CA 945381093729840
- Aye Aung, NPFremont, CA 945381457839581
- Sheena BainsFremont, CA 945381942759691
- Shu-Chen Jennie Cheng, FNPFremont, CA 945381770517393
- Janice Cooper, MSN, NPFremont, CA 945381972748648
- Edward Cremata, D.C.Fremont, CA 945381770688814
- Susan Doughty, NPFremont, CA 945381285676759
- Aldrin Geronga, F.N.P.Fremont, CA 945381285062257
Common questions
What is Benjamin Weizer Chang's NPI number?
Benjamin Weizer Chang's National Provider Identifier (NPI) is 1952780652, issued on May 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Weizer Chang located?
The NPPES record lists a practice address at 39180 Farwell Dr, Fremont, CA, 94538. Phone: (510) 585-2545. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Weizer Chang's license?
NPPES lists California license number 95002080, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Benjamin Weizer Chang prescribe under Medicare Part D?
In 2024, Benjamin Weizer Chang had 305 Medicare Part D claims for 109 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.