Dr Alfonso A Ortiz, MD - Medicare Endocrinology in Las Vegas, NV

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Dr Alfonso A Ortiz, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Las Vegas, Nevada. He graduated from medical school in 1983 and has 41 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice Essen Medical Associates, Pc and his current practice location is 540 N Nellis Blvd, Las Vegas, Nevada. You can reach out to his office (for appointments etc.) via phone at (702) 677-3609.

Dr Alfonso A Ortiz is licensed to practice in New York (license number 170235) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1699915967.

Contact Information

Dr Alfonso A Ortiz, MD
540 N Nellis Blvd,
Las Vegas, NV 89110
(702) 677-3609
(702) 431-0265

Map and Direction




Physician's Profile

Full NameDr Alfonso A Ortiz
GenderMale
SpecialityEndocrinology
Experience41 Years
Location540 N Nellis Blvd, Las Vegas, Nevada
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Alfonso A Ortiz graduated from medical school in 1983
  NPI Data:
  • NPI Number: 1699915967
  • Provider Enumeration Date: 02/26/2009
  • Last Update Date: 06/06/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 5193882066
  • Enrollment ID: I20090319000516

Medical Identifiers

Medical identifiers for Dr Alfonso A Ortiz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1699915967NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 17966 (Nevada)Secondary
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 170235 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Essen Medical Associates, Pc1759353501121

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Alfonso A Ortiz allows following entities to bill medicare on his behalf.
Entity NameEssen Medical Associates, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366418709
PECOS PAC ID: 1759353501
Enrollment ID: O20040811000885
Entity NameMedalliance Medical Health Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558356741
PECOS PAC ID: 4789633678
Enrollment ID: O20050118000826
Entity NameHouse Call Medical Services Of New York Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851345946
PECOS PAC ID: 2264517754
Enrollment ID: O20080307000427
Entity NameBronx Medical Practice Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356726087
PECOS PAC ID: 9739496100
Enrollment ID: O20150917000004
Entity NameShakespeare Operating Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720634538
PECOS PAC ID: 0840604310
Enrollment ID: O20210123000014

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Alfonso A Ortiz is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Alfonso A Ortiz, MD
1181 Grand Concourse,
Bronx, NY 10452-8503

Ph: (718) 681-6565		Dr Alfonso A Ortiz, MD
540 N Nellis Blvd,
Las Vegas, NV 89110

Ph: (702) 677-3609

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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