Louanne Lane Giangreco, MD
Emergency Medicine Physician · Hayward, CA
Louanne Lane Giangreco, MD is an emergency medicine physician with a practice address in Hayward, California, and NPI 1740390574, issued on Aug 30, 2006. Check the license (California C198335, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Louanne Lane Giangreco
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- C198335 CA
MD.47637 AL
ME164287 FL
236573 NY
ME164287 RI
and 1 more
Self-reported in NPPES; status is on the state search - Practice location
- 22331 Mission Blvd, Hayward, CA 94541
- Phone
- (510) 471-5880
- Enumerated
- Aug 30, 2006
- Record last updated
- Aug 14, 2024
- Medicaid ID
- 02683714 NY
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 22331 Mission Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jose AguirreCounselor1235822677
- Elaine Ahn, NPFamily Nurse Practitioner1639901739
- Ziba Amed, ODOptometrist1457623266
- Lauren AndersonFamily Nurse Practitioner1952942955
Verify Louanne Lane Giangreco in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C198335Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average emergency medicine physician in 2024
13 Medicare Part D claims for 11 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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: $73.30
1 payment: food and beverage; the largest payer was MeMed US, Inc. The 12,335 providers of this specialty with any payment received $953.79 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.
Louanne Lane Giangreco among 7,751 emergency medicine physician records in California
Louanne Lane Giangreco, MD is one of 7,751 emergency 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 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 emergency medicine physician records list a practice address in Hayward
They are 26 of the 3,993 NPPES records with a practice address in Hayward, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Hayward → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Harry Andrews, MDFremont, CA 945381295865426
- Lauren Auerbach, MDFremont, CA 945381033678990
- Katya De SouzaFremont, CA 945381417452228
- Jeffrey Lenchner, MDFremont, CA 945381922138171
- Kai Li, M.D.Fremont, CA 945381942522800
- Stephen Montgomery, MDFremont, CA 945381194855353
- Kevin Morrissey, MDFremont, CA 945381942330949
- David Orenberg, MDFremont, CA 945381710017710
Common questions
What is Louanne Lane Giangreco, MD's NPI number?
Louanne Lane Giangreco, MD's National Provider Identifier (NPI) is 1740390574, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Louanne Lane Giangreco, MD located?
The NPPES record lists a practice address at 22331 Mission Blvd, Hayward, CA, 94541. Phone: (510) 471-5880. Providers update this record themselves, so call before visiting.
How can I verify Louanne Lane Giangreco, MD's license?
NPPES lists California license number C198335, 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 Louanne Lane Giangreco, MD prescribe under Medicare Part D?
In 2024, Louanne Lane Giangreco, MD had 13 Medicare Part D claims for 11 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.