Nickolas Daniel Flores
Hospitalist Physician · San Francisco, CA
Nickolas Daniel Flores is a hospitalist physician with a practice address in San Francisco, California, and NPI 1134756844, issued on Mar 24, 2020. Check the license (California A187559, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nickolas Daniel Flores
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A187559 CA
Self-reported in NPPES; status is on the state search - Practice location
- 601 Van Ness Ave Ste E3619, San Francisco, CA 94102
- Phone
- (415) 531-9047
- Enumerated
- Mar 24, 2020
- Record last updated
- Jul 6, 2023
- Medicare enrollment
- Enrolled (PECOS I20230718003676); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 601 Van Ness Ave Ste E3619
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alireza Alavi, D.O.Hospitalist Physician1861714263
- Ray Brindley, M.D.Internal Medicine Physician1871528992
- Valerie Garrett, MDInternal Medicine Physician1326003013
- Rashonda Hall, CNPNurse Practitioner1932687696
- Victor Hsu, MDInternal Medicine Physician1437491156
- Jane Huang, M.D.Hospitalist Physician1003944422
Verify Nickolas Daniel Flores in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A187559Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average hospitalist physician in 2024
213 Medicare Part D claims for 94 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass16 claims
- Atorvastatin Calcium14 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
- Pacific Inpatient Medical GroupSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nickolas Daniel Flores among 3,099 hospitalist physician records in California
Nickolas Daniel Flores is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 85% of them.
- NPI issued2020 · 85% of these records are older, 10% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2020 · median 2010 among the 2,505 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Francisco → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Alireza Alavi, D.O.San Francisco, CA 941021861714263
- Jonathan Fuchs, M.D.San Francisco, CA 941021205937380
- Jane Huang, M.D.San Francisco, CA 941021003944422
- Ding Ding Lee, M.D.San Francisco, CA 941021053468058
- Jolie Macrito, DOSan Francisco, CA 941021841635000
- Duc-Uy Quang-Dang, M.D.San Francisco, CA 941021881983799
- Rachael Vandebogart, MDSan Francisco, CA 941021861768285
- Jeannie Brewer, MDSan Francisco, CA 941091609898345
Common questions
What is Nickolas Daniel Flores's NPI number?
Nickolas Daniel Flores's National Provider Identifier (NPI) is 1134756844, issued on Mar 24, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Nickolas Daniel Flores located?
The NPPES record lists a practice address at 601 Van Ness Ave Ste E3619, San Francisco, CA, 94102. Phone: (415) 531-9047. Providers update this record themselves, so call before visiting.
How can I verify Nickolas Daniel Flores's license?
NPPES lists California license number A187559, 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 Nickolas Daniel Flores prescribe under Medicare Part D?
In 2024, Nickolas Daniel Flores had 213 Medicare Part D claims for 94 beneficiaries; the average among hospitalist physician prescribers was 521. 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.