Lucia Flores Yumena, M.D.
Nephrology Physician · Fremont, CA
Lucia Flores Yumena, M.D. is a nephrology physician with a practice address in Fremont, California, and NPI 1508927633, issued on Dec 13, 2006. Check the license (California A39976, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lucia Flores Yumena
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A39976 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2557 Mowry Ave Ste 33, Fremont, CA 94538
- Phone
- (510) 745-8100
- Enumerated
- Dec 13, 2006
- Record last updated
- Jul 7, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (510) 797-4983
- Medicaid ID
- 00A399760 CA
- Medicare enrollment
- Enrolled (PECOS I20101213000624); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 2557 Mowry Ave Ste 33
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Nicholson, M.D.Cardiovascular Disease Physician1144381278
Verify Lucia Flores Yumena in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A39976Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average nephrology physician in 2024
1,567 Medicare Part D claims for 156 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate186 claims
- Losartan Potassium150 claims
- Atorvastatin Calcium114 claims
- Lisinopril76 claims
- Pravastatin Sodium75 claims
- Metformin Hcl64 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.
Lucia Flores Yumena among 1,468 nephrology physician records in California
Lucia Flores Yumena, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1975 · median 2001 among the 1,128 with a school on file
- Record last updated2010 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Fremont → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Jeanie Ahn, M.D.Fremont, CA 945381053359356
- Neiha Arora, MDFremont, CA 945381588879217
- Varun ChawlaFremont, CA 945381609067537
- Qi Che, M.D.Fremont, CA 945381447429212
- Rajesh Davda, MDFremont, CA 945381740220433
- Peter Lunny, M.D.Fremont, CA 945381689621765
- Mary Palathumpat, MDFremont, CA 945381225113988
- Shalini Sundar, M.D.Fremont, CA 945381780607838
Common questions
What is Lucia Flores Yumena, M.D.'s NPI number?
Lucia Flores Yumena, M.D.'s National Provider Identifier (NPI) is 1508927633, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lucia Flores Yumena, M.D. located?
The NPPES record lists a practice address at 2557 Mowry Ave Ste 33, Fremont, CA, 94538. Phone: (510) 745-8100. Providers update this record themselves, so call before visiting.
How can I verify Lucia Flores Yumena, M.D.'s license?
NPPES lists California license number A39976, 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 Lucia Flores Yumena, M.D. prescribe under Medicare Part D?
In 2024, Lucia Flores Yumena, M.D. had 1,567 Medicare Part D claims for 156 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.