Xiaoguang Huang, M.D., PHD.
Internal Medicine Physician · Oakland, CA
Xiaoguang Huang, M.D., PHD. is an internal medicine physician with a practice address in Oakland, California, and NPI 1235179870, issued on Jun 8, 2006. Check the license (California A64820, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Xiaoguang Huang
- Credential
- M.D., PHD.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A64820 CA
Self-reported in NPPES; status is on the state search - Practice location
- 345 9TH St, Oakland, CA 94607
- Phone
- (510) 663-9518
- Enumerated
- Jun 8, 2006
- Record last updated
- Aug 31, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (510) 663-9520
- Medicaid ID
- 00A648201 CA
- Medicare enrollment
- Enrolled (PECOS I20041028000308); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 345 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Xiaoguang Huang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64820Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.7 times the Medicare Part D claims of the average internal medicine physician in 2024
18,076 Medicare Part D claims for 885 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 136 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,852 claims
- Valsartan1,283 claims
- Metformin Hcl971 claims
- Carvedilol902 claims
- Amlodipine Besylate875 claims
- Losartan Potassium514 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: $783.55
21 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Xiaoguang Huang among 17,696 internal medicine physician records in California
Xiaoguang Huang, M.D., 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 fileYes · 63% of these records are
- Graduated1982 · median 2004 among the 11,065 with a school on file
- Record last updated2009 · 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).
432 internal medicine physician records list a practice address in Oakland
They are 432 of the 18,558 NPPES records with a practice address in Oakland, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oakland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Marilyn Ancel, MDOakland, CA 946071295813087
- Clayton Chan, MDOakland, CA 946071972682037
- Stewart Fong, MDOakland, CA 946071659459436
- Susan Mei Huang, MDOakland, CA 946071093894032
- Dennis Ing, MDOakland, CA 946071477631257
- Anthony Iton, M.D.Oakland, CA 946071609961101
- Nicola Longmuir, MDOakland, CA 946071710065511
- Yee-Bun Lui, M.D.Oakland, CA 946071609845767
Common questions
What is Xiaoguang Huang, M.D., PHD.'s NPI number?
Xiaoguang Huang, M.D., PHD.'s National Provider Identifier (NPI) is 1235179870, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Xiaoguang Huang, M.D., PHD. located?
The NPPES record lists a practice address at 345 9TH St, Oakland, CA, 94607. Phone: (510) 663-9518. Providers update this record themselves, so call before visiting.
How can I verify Xiaoguang Huang, M.D., PHD.'s license?
NPPES lists California license number A64820, 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 Xiaoguang Huang, M.D., PHD. prescribe under Medicare Part D?
In 2024, Xiaoguang Huang, M.D., PHD. had 18,076 Medicare Part D claims for 885 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.