ALBERTO NENNINGER LEON MD
NPI 1750809968
Internal Medicine in Edinburg, TX

Q: What is Alberto Nenninger Leon's NPI number?

The NPI number for Alberto Nenninger Leon is 1750809968. It was assigned to this individual provider in the NPPES registry on September 7, 2017.

Q: What is Alberto Nenninger Leon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since September 07, 2017PECOS EnrolledAccepts Medicare Assignment

82.45/100

CMS Quality Rating

5501 S MCCOLL RD, EDINBURG, TX 78539(956) 362-8677(956) 362-7253 Get Directions Write a Review

NPPES record last updated: October 21, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Alberto Nenninger Leon Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALBERTO NENNINGER LEON MD (NPI 1750809968) is an individual internal medicine provider in Edinburg, Texas, licensed in New Mexico (MD2020-0267) and active in the NPI registry since September 2017. He is enrolled in Medicare PECOS, is affiliated with San Juan Regional Medical Center Inc, and maintains a secondary practice location in Farmington.

NPPES Registry Identity

NPI1750809968

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameALBERTO NENNINGER LEONCredential: MD

Location Address5501 S MCCOLL RDEdinburg, TX 78539-5503

Mailing AddressPo Box 5958Mcallen, TX 78502-5958 · (956) 362-8677 · Fax (956) 362-7253

Phone(956) 362-8677

Fax(956) 362-7253

Sole ProprietorYes

Medical School CMSOtherGraduated 2016

Enumeration DateSeptember 7, 2017

Last NPPES UpdateOctober 21, 2025

NPPES CertifiedOctober 21, 2025

✔ NPI 1750809968 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in NM · MD2020-0267✔ Licensed in TX · V9380

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedHospitalistTaxonomy 208M00000X · License V9380 (TX)

5501 S MCCOLL RD, Edinburg, TX 78539

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Secondary Practice Location 1

Location 1801 W Maple StFarmington, NM 87401-5630 · Phone (505) 609-2000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alberto Nenninger Leon Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335563550

PECOS Enrollment IDI20200721003654, I20250819004341

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Alberto Nenninger Leon reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Renaissance Hospitalists

Same address

Hospitalist

5501 S MCCOLL RD
Edinburg, TX 78539

Reassigned Medicare billing, Texas enrollment
46 clinicians in this Medicare group

NPI 1386073203 (956) 362-2171

Lone Star Extensivists PLLC

240 mi

Internal Medicine

29924 FM 3009
New Braunfels, TX 78132

Reassigned Medicare billing, Texas enrollment
26 clinicians in this Medicare group

NPI 1568296952 (830) 620-0330

San Juan Regional Medical Center Inc

922 mi

Family Medicine

100 N CHURCH ST STE C
Bloomfield, NM 87413

Reassigned Medicare billing, New Mexico enrollment
368 clinicians in this Medicare group

NPI 1508219916 (505) 609-6675

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

200 services111 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

119 services89 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

97 services93 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

94 services93 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

66 services52 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

33 services18 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

San Juan Regional Medical Center Inc

Acute Care Hospitals · Farmington, NM

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number320005

Location801 West Maple StreetFarmington, NM 87401 · San Juan County

Emergency services Birthing friendly

Christus Santa Rosa Hospital-San Marcos

Acute Care Hospitals · San Marcos, TX

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number450272

Location1301 Wonder World DriveSan Marcos, TX 78666 · Hays County

Emergency services Birthing friendly

Doctors Hosptal At Renaissance

Acute Care Hospitals · Edinburg, TX

3/5 CMS rating

OwnershipPhysician

CMS Certification Number450869

Location5501 South MccollEdinburg, TX 78539 · Hidalgo County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78539 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.45/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

76.08

Promoting Interoperability

100

Improvement Activities

Cost

54.76

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

1 supplier11 claims11 services$55.53 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers39 claims39 services$17.46 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers46 claims46 services$86.74 avg. paid by Medicare

Lightweight wheelchair K0003

DME-Wheelchairs · category DD000N

1 supplier13 claims13 services$37.13 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. ADOLFO ARTEAGA APRN-CNP

Nurse Practitioner (Acute Care)