Nicholas Gregory Calica, MD
Internal Medicine Physician · Las Vegas, NV
Nicholas Gregory Calica, MD is an internal medicine physician with a practice address in Las Vegas, Nevada, and NPI 1891797593, issued on Aug 11, 2005. Check the license (Nevada 8250, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nicholas Gregory Calica
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 8250 NV
Self-reported in NPPES; status is on the state search - Practice location
- 6355 S Buffalo Dr FL 3, Las Vegas, NV 89113
- Phone
- (702) 952-9171
- Enumerated
- Aug 11, 2005
- Record last updated
- Nov 1, 2022
- Fax
- (702) 952-9170
- Medicaid ID
- 1891797593 NV
- Entity
- Type 1 · individual
Also registered at 6355 S Buffalo Dr FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lourdes Rucela Ada, M.D.Family Medicine Physician1114957032
- Charlene Adrian, D.O.Internal Medicine Physician1407276165
- Ma Celestina Aguilar, APRNNurse Practitioner1013596220
- Farzad Alikozai, D.O.Internal Medicine Physician1508247446
- Reydel Alvarez, NP-CFamily Nurse Practitioner1467996876
- Rebekah AmbuehlClinical Social Worker1760749048
Verify Nicholas Gregory Calica in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 8250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,086 Medicare Part D claims for 423 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 111 claims were for opioids.
Most prescribed
- Metoprolol Tartrate86 claims
- Cefdinir66 claims
- Hydrocodone-Acetaminophen63 claims
- Lisinopril62 claims
- Atorvastatin Calcium40 claims
- Eliquis38 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.
716 internal medicine physician records list a practice address in Las Vegas
They are 716 of the 65,269 NPPES records with a practice address in Las Vegas, and 1,229 internal medicine physician records in Nevada.
All 716 in Las Vegas → All 1,229 in Nevada → Every provider in Las Vegas →
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- Christopher Aboujaoude, MDLas Vegas, NV1225730658
- Samuel Abplanalp, DOLas Vegas, NV1770223968
- Erika Abraham, M.D.Nellis Afb, NV1831326644
- Amani Abu Samha, M.DLas Vegas, NV1376473736
Common questions
What is Nicholas Gregory Calica, MD's NPI number?
Nicholas Gregory Calica, MD's National Provider Identifier (NPI) is 1891797593, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Gregory Calica, MD located?
The NPPES record lists a practice address at 6355 S Buffalo Dr FL 3, Las Vegas, NV, 89113. Phone: (702) 952-9171. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Gregory Calica, MD's license?
NPPES lists Nevada license number 8250, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nicholas Gregory Calica, MD prescribe under Medicare Part D?
In 2024, Nicholas Gregory Calica, MD had 1,086 Medicare Part D claims for 423 beneficiaries; 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.