Sieghart H. Ponhold, M.D
Family Medicine Physician · Norwalk, CA
Sieghart H. Ponhold, M.D is a family medicine physician with a practice address in Norwalk, California, and NPI 1891883955, issued on Oct 11, 2006. Check the license (California A35148, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sieghart H. Ponhold
- Credential
- M.D
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A35148 CA
Self-reported in NPPES; status is on the state search - Practice location
- 13132 Studebaker RD, Norwalk, CA 90650
- Phone
- (562) 474-8877
- Enumerated
- Oct 11, 2006
- Record last updated
- Sep 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (562) 474-8879
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 13132 Studebaker RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rebecca Rogoff, D.P.M.Podiatrist1780624544
Verify Sieghart H. Ponhold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A35148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% more Medicare Part D claims than the average family medicine physician in 2024
6,011 Medicare Part D claims for 463 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium328 claims
- Amlodipine Besylate221 claims
- Levothyroxine Sodium214 claims
- Metformin Hcl197 claims
- Tamsulosin Hcl163 claims
- Furosemide161 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.
Sieghart H. Ponhold among 17,133 family medicine physician records in California
Sieghart H. Ponhold, M.D 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 updated2018 · 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).
20 family medicine physician records list a practice address in Norwalk
They are 20 of the 1,600 NPPES records with a practice address in Norwalk, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Norwalk → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Pooja Akotia, D.O.Norwalk, CA 906501316234511
- Ana Bejinez-Eastman, M.D.Norwalk, CA 906501952359671
- Zakaria BoshraNorwalk, CA 906501811094832
- Sheree Cloer, D.O.Norwalk, CA 906501821038647
- Anthony Dorse, M.D.Norwalk, CA 906501427375021
- Remedios Gozon-Reyes, MDNorwalk, CA 906501821016668
- Leonard Liu, MDNorwalk, CA 906501942236005
- Quynh Pham, DONorwalk, CA 906501851327910
Common questions
What is Sieghart H. Ponhold, M.D's NPI number?
Sieghart H. Ponhold, M.D's National Provider Identifier (NPI) is 1891883955, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sieghart H. Ponhold, M.D located?
The NPPES record lists a practice address at 13132 Studebaker RD, Norwalk, CA, 90650. Phone: (562) 474-8877. Providers update this record themselves, so call before visiting.
How can I verify Sieghart H. Ponhold, M.D's license?
NPPES lists California license number A35148, 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 Sieghart H. Ponhold, M.D prescribe under Medicare Part D?
In 2024, Sieghart H. Ponhold, M.D had 6,011 Medicare Part D claims for 463 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.