Sarah Noonberg, MD, PHD
Internal Medicine Physician · Castro Valley, CA
Sarah Noonberg, MD, PHD is an internal medicine physician with a practice address in Castro Valley, California, and NPI 1023041449, issued on Jul 9, 2006. Check the license (California A81259, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sarah Noonberg
- Credential
- MD, PHD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A81259 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20103 Lake Chabot RD, Castro Valley, CA 94546
- Phone
- (510) 889-5082
- Enumerated
- Jul 9, 2006
- Record last updated
- Mar 5, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 20103 Lake Chabot RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rachna Bali, DOHospitalist Physician1346541554
Verify Sarah Noonberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A81259Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $63,396.25
11 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Marinus Pharmaceuticals, Inc. 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.
Sarah Noonberg among 17,696 internal medicine physician records in California
Sarah Noonberg, MD, PHD 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2014 · 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).
24 internal medicine physician records list a practice address in Castro Valley
They are 24 of the 999 NPPES records with a practice address in Castro Valley, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Castro Valley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nabil Abudayeh, MDCastro Valley, CA 945461699724484
- Monica Bhargava, MDCastro Valley, CA 945461619900347
- Wing Chin, M.D.Castro Valley, CA 945461124052576
- Richard Ho, M. D.Castro Valley, CA 945461548283005
- Kathryn Hodge, MDCastro Valley, CA 945461194741256
- Nidhi Johri, M.DCastro Valley, CA 945461285811489
- Samir Kadada, M.D.Castro Valley, CA 945461952315202
- Donald Knotts, MEDICAL DOCTORCastro Valley, CA 945461790858611
Common questions
What is Sarah Noonberg, MD, PHD's NPI number?
Sarah Noonberg, MD, PHD's National Provider Identifier (NPI) is 1023041449, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Noonberg, MD, PHD located?
The NPPES record lists a practice address at 20103 Lake Chabot RD, Castro Valley, CA, 94546. Phone: (510) 889-5082. Providers update this record themselves, so call before visiting.
How can I verify Sarah Noonberg, MD, PHD's license?
NPPES lists California license number A81259, 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.
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.