Susan Marie Nasser, D.O.
Family Medicine Physician · Lancaster, CA
Susan Marie Nasser, D.O. is a family medicine physician with a practice address in Lancaster, California, and NPI 1972668416, issued on Dec 26, 2006. Check the license (California 20A8970, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Susan Marie Nasser
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A8970 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1523 W Avenue J, Lancaster, CA 93534
- Phone
- (661) 945-2221
- Enumerated
- Dec 26, 2006
- Record last updated
- Nov 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (661) 945-0831
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1523 W Avenue J
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Susan Marie Nasser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A8970Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average family medicine physician in 2024
2,882 Medicare Part D claims for 448 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 34 claims were for opioids.
Most prescribed
- Amlodipine Besylate115 claims
- Levothyroxine Sodium114 claims
- Losartan Potassium104 claims
- Atorvastatin Calcium100 claims
- Omeprazole92 claims
- Metformin Hcl71 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: $408.82
19 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 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.
Susan Marie Nasser among 17,133 family medicine physician records in California
Susan Marie Nasser, D.O. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 family medicine physician records list a practice address in Lancaster
They are 45 of the 4,273 NPPES records with a practice address in Lancaster, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Lancaster → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Manuel Arroyo, M.D.Lancaster, CA 935341508860412
- Emelie Baguio Ngo, MDLancaster, CA 935341144230152
- Bryan Benefiel, M.D.Lancaster, CA 935341508854282
- Thelma Fernandez, M.D.Lancaster, CA 935341861505158
- Ruben Hernandez, MDLancaster, CA 935341700879897
- Siamak Heshmati, MDLancaster, CA 935341972550077
- Richard Kling, M.D.Lancaster, CA 935341265453690
- Pratibha Kumar, M.D.Lancaster, CA 935341881653285
Common questions
What is Susan Marie Nasser, D.O.'s NPI number?
Susan Marie Nasser, D.O.'s National Provider Identifier (NPI) is 1972668416, issued on Dec 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan Marie Nasser, D.O. located?
The NPPES record lists a practice address at 1523 W Avenue J, Lancaster, CA, 93534. Phone: (661) 945-2221. Providers update this record themselves, so call before visiting.
How can I verify Susan Marie Nasser, D.O.'s license?
NPPES lists California license number 20A8970, 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 Susan Marie Nasser, D.O. prescribe under Medicare Part D?
In 2024, Susan Marie Nasser, D.O. had 2,882 Medicare Part D claims for 448 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.