Mallory Miao Zhang, M.D.
Obstetrics & Gynecology Physician · Fontana, CA
Mallory Miao Zhang, M.D. is an obstetrics & gynecology physician with a practice address in Fontana, California, and NPI 1912040726, issued on Feb 14, 2007. Check the license (California A79795, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mallory Miao Zhang
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A79795 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9985 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-2615
- Enumerated
- Feb 14, 2007
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050621000811); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 9985 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mallory Miao Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A79795Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
276 Medicare Part D claims for 61 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 48 claims were for opioids.
Most prescribed
- Dexamethasone41 claims
- Oxycodone Hcl31 claims
- Prochlorperazine Maleate21 claims
- Ondansetron Odt17 claims
- Letrozole14 claims
- Gabapentin13 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mallory Miao Zhang among 5,088 obstetrics & gynecology physician records in California
Mallory Miao Zhang, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 38% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2001 · median 2004 among the 2,700 with a school on file
- Record last updated2021 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
50 obstetrics & gynecology physician records list a practice address in Fontana
They are 50 of the 3,012 NPPES records with a practice address in Fontana, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Fontana → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Berneva Adams, MDFontana, CA 923351376602987
- Curt Bouma, MDFontana, CA 923351629145537
- Kenneth Griffis Jr., MDFontana, CA 923351437218146
- Jerrelyn Inocencio-Diaz, MDFontana, CA 923351326115163
- Linda Knudtson, MDFontana, CA 923351689745622
- Sung Lee, MDFontana, CA 923351124195276
- Elaine Pan, MDFontana, CA 923351821165721
- Rodney Parker, MDFontana, CA 923351437226396
Common questions
What is Mallory Miao Zhang, M.D.'s NPI number?
Mallory Miao Zhang, M.D.'s National Provider Identifier (NPI) is 1912040726, issued on Feb 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mallory Miao Zhang, M.D. located?
The NPPES record lists a practice address at 9985 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-2615. Providers update this record themselves, so call before visiting.
How can I verify Mallory Miao Zhang, M.D.'s license?
NPPES lists California license number A79795, 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 Mallory Miao Zhang, M.D. prescribe under Medicare Part D?
In 2024, Mallory Miao Zhang, M.D. had 276 Medicare Part D claims for 61 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.