Nicholas James Macaluso, MD
Emergency Medicine Physician · Tarzana, CA
Nicholas James Macaluso, MD is an emergency medicine physician with a practice address in Tarzana, California, and NPI 1275114951, issued on Apr 15, 2021. Check the license (California A183071, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nicholas James Macaluso
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A183071 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18321 Clark St, Tarzana, CA 91356
- Phone
- (818) 708-5172
- Enumerated
- Apr 15, 2021
- Record last updated
- Aug 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20250610000122); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 18321 Clark St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Celia Alconcel, M.D.Neonatal-Perinatal Medicine Physician1982615654
- Nathan AlyeshInternal Medicine Physician1417362856
Verify Nicholas James Macaluso in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A183071Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average emergency medicine physician in 2024
40 Medicare Part D claims for 26 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.
Bills Medicare through 2 group practices
- County OF Los AngelesVan Nuys, CA
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas James Macaluso among 7,751 emergency medicine physician records in California
Nicholas James Macaluso, 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 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2021 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Tarzana → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ralph Baca, M.D.Tarzana, CA 913561538102082
- Neil Canby, M.D.Tarzana, CA 913561023056546
- Frederick Dennis, M.D.Tarzana, CA 913561033157003
- Breahn Donaldson, MDTarzana, CA 913561104486208
- Vincent Green, M.D.Tarzana, CA 913561902849862
- Jason Greenspan, M.D.Tarzana, CA 913561780626697
- Alan Heilpern, M.D.Tarzana, CA 913561649219080
- Anthony Hernandez, M.D.Tarzana, CA 913561376587212
Common questions
What is Nicholas James Macaluso, MD's NPI number?
Nicholas James Macaluso, MD's National Provider Identifier (NPI) is 1275114951, issued on Apr 15, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas James Macaluso, MD located?
The NPPES record lists a practice address at 18321 Clark St, Tarzana, CA, 91356. Phone: (818) 708-5172. Providers update this record themselves, so call before visiting.
How can I verify Nicholas James Macaluso, MD's license?
NPPES lists California license number A183071, 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 Nicholas James Macaluso, MD prescribe under Medicare Part D?
In 2024, Nicholas James Macaluso, MD had 40 Medicare Part D claims for 26 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.