Madonna A. Nicolai, CFNP
Internal Medicine Physician · Tustin, CA
Madonna A. Nicolai, CFNP is an internal medicine physician with a practice address in Tustin, California, and NPI 1164648556, issued on Apr 17, 2007. Check the license (California RN235360, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Madonna A. Nicolai
- Credential
- CFNP
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- RN235360 CA
6499 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14351 Myford RD, Tustin, CA 92780
- Phone
- (714) 550-9990
- Enumerated
- Apr 17, 2007
- Record last updated
- Mar 7, 2023
- Fax
- (714) 550-1226
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 14351 Myford RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Madonna A. Nicolai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license RN235360Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
23 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Madonna A. Nicolai among 17,696 internal medicine physician records in California
Madonna A. Nicolai, CFNP is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2023 · 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 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 internal medicine physician records list a practice address in Tustin
They are 34 of the 2,221 NPPES records with a practice address in Tustin, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Tustin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mohamed Al-Sadek, M.D.Tustin, CA 927801154353829
- Susan Ban, M.D.Tustin, CA 927801053324970
- Bernard Bennett, MDTustin, CA 927801871568899
- Jacqueline Do, M.D.Tustin, CA 927801689646952
- Huong Duong, M.D.Tustin, CA 927801013020437
- Daniel Eichinger, DOTustin, CA 927801598724015
- Pin-Hung Hsieh, M.D.Tustin, CA 927801144323064
- Thomas Hwang, M.D.Tustin, CA 927801124039722
Common questions
What is Madonna A. Nicolai, CFNP's NPI number?
Madonna A. Nicolai, CFNP's National Provider Identifier (NPI) is 1164648556, issued on Apr 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Madonna A. Nicolai, CFNP located?
The NPPES record lists a practice address at 14351 Myford RD, Tustin, CA, 92780. Phone: (714) 550-9990. Providers update this record themselves, so call before visiting.
How can I verify Madonna A. Nicolai, CFNP's license?
NPPES lists California license number RN235360, 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 Madonna A. Nicolai, CFNP prescribe under Medicare Part D?
In 2024, Madonna A. Nicolai, CFNP had 23 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.