NPPES file of Aug 9, 2026

Arnd Herz, M.D.

Pediatric Infectious Diseases Physician · Hayward, CA

Arnd Herz, M.D. is a pediatric infectious diseases physician with a practice address in Hayward, California, and NPI 1790835510, issued on Jan 12, 2007. Check the license (California G84671, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790835510
Name
Arnd Herz
Credential
M.D.
Primary taxonomy
Pediatric Infectious Diseases Physician 2080P0208X
License number
G84671 CA
Self-reported in NPPES; status is on the state search
Practice location
27303 Sleepy Hollow Ave S, Hayward, CA 94545
Phone
(510) 454-1000
Enumerated
Jan 12, 2007
Record last updated
Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00G846710 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest pediatric infectious diseases physician records → All 161 in California → Look up another NPI →

Also registered at 27303 Sleepy Hollow Ave S

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Malini Amin, MDPediatrics Physician1801095252
  2. Madhulika Battu, MDPediatrics Physician1245736370
  3. Mario Bernaba, MDNephrology Physician1205499506
  4. Neelam Bhalla, M.D.Nephrology Physician1639118052
  5. Pooja Bhoopalam, PHARMDPharmacist1871022186
  6. Natalie CacAllergy & Immunology Physician1205006657

Verify Arnd Herz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G84671    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Arnd Herz among 161 pediatric infectious diseases physician records in California

Arnd Herz, M.D. is one of 161 pediatric infectious diseases physician records with a practice address in California. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 40% newer
  • In a Medicare fileNo · 48% of these records are
  • In the CMS Doctors and Clinicians fileNo · 30% of these records are
  • Record last updated2021 · 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 2080P0208X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Infectious Diseases Physician providers in California

There are 161 pediatric infectious diseases physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 161 in California → Every provider in Hayward → Pediatric Infectious Diseases Physician nationwide →

The 8 pediatric infectious diseases physician records with the nearest ZIP codes

  1. Megan Connick, M.D.Fairfield, CA 945341104841576
  2. Alexandra Duque Silva, M.D.Brentwood, CA 945131174758585
  3. Garwin Soe, MDAntioch, CA 945091891845616
  4. Randy Bergen, MDWalnut Creek, CA 945961316025497
  5. Dan Granoff, M.D.Oakland, CA 946091609131697
  6. Charlotte Hsieh, M.D.Oakland, CA 946091093745630
  7. Brian Lee, M.D.Oakland, CA 946091417987033
  8. Ann Petru, M.D.Oakland, CA 946091568490878

Common questions

What is Arnd Herz, M.D.'s NPI number?

Arnd Herz, M.D.'s National Provider Identifier (NPI) is 1790835510, issued on Jan 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Arnd Herz, M.D. located?

The NPPES record lists a practice address at 27303 Sleepy Hollow Ave S, Hayward, CA, 94545. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.

How can I verify Arnd Herz, M.D.'s license?

NPPES lists California license number G84671, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.