Charles E. Niesen, M.D.
Specialist · Pasadena, CA
Charles E. Niesen, M.D. is a specialist with a practice address in Pasadena, California, and NPI 1710915830, issued on Jun 29, 2006. Check the license (California A54329, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Charles E. Niesen
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A54329 CA
Self-reported in NPPES; status is on the state search - Practice location
- 960 E Green St, Pasadena, CA 91106
- Phone
- (626) 599-7600
- Enumerated
- Jun 29, 2006
- Record last updated
- Oct 31, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (626) 599-7601
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 960 E Green St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles E. Niesen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A54329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average specialist in 2024
162 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Sertraline Hcl39 claims
- Ethosuximide28 claims
- Gabapentin27 claims
- Lamotrigine12 claims
- Quetiapine Fumarate Er12 claims
- Risperidone12 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: $1,235.54
61 payments; by number, the most common kind was food and beverage; the largest payer was Neurelis, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Charles E. Niesen among 5,749 specialist records in California
Charles E. Niesen, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2016 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Pasadena → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Ayad Alanizi, M.D.Pasadena, CA 911061588726756
- Almira Cann, MDPasadena, CA 911061699748392
- David Denenholz, M.D.Pasadena, CA 911061801837331
- Mason Lai, LEPasadena, CA 911061902498157
- Salathiel Matos, P.A.Pasadena, CA 911061659444792
- Gabriel Pai, M.D.Pasadena, CA 911061356388110
- Robert Seltzer, M.D.Pasadena, CA 911061437127099
- Gaye Shepard, LCSW, PH.D.Pasadena, CA 911061669501037
Common questions
What is Charles E. Niesen, M.D.'s NPI number?
Charles E. Niesen, M.D.'s National Provider Identifier (NPI) is 1710915830, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles E. Niesen, M.D. located?
The NPPES record lists a practice address at 960 E Green St, Pasadena, CA, 91106. Phone: (626) 599-7600. Providers update this record themselves, so call before visiting.
How can I verify Charles E. Niesen, M.D.'s license?
NPPES lists California license number A54329, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Charles E. Niesen, M.D. prescribe under Medicare Part D?
In 2024, Charles E. Niesen, M.D. had 162 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.