ALEJANDRO HERNANDEZ HERNANDEZ MD
NPI 1871908178
Preventive Medicine - Undersea and Hyperbaric Medicine in Mercedes, TX

Q: What is Alejandro Hernandez Hernandez's NPI number?

The NPI number for Alejandro Hernandez Hernandez is 1871908178. It was assigned to this individual provider in the NPPES registry on June 25, 2014.

Q: What is Alejandro Hernandez Hernandez's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Undersea and Hyperbaric Medicine, with taxonomy code 2083P0011X.

Active since June 25, 2014PECOS EnrolledAccepts Medicare Assignment

81.44/100

CMS Quality Rating

2810 W EXPRESSWAY 83, MERCEDES, TX 78570(956) 734-9067(956) 734-9068 Get Directions Write a Review

NPPES record last updated: July 6, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 6, 2024, Jan 19, 2021, Jan 17, 2021 and 2 more (5 updates tracked since 2020).

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About Alejandro Hernandez Hernandez Md NPPES

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

ALEJANDRO HERNANDEZ HERNANDEZ MD (NPI 1871908178) is an individual undersea and hyperbaric medicine provider in Mercedes, Texas, licensed in Texas (R0246) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Valley Baptist Medical Center- Brownsville, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1871908178

Entity TypeIndividualMale

Primary Taxonomy2083P0011X

Provider Legal NameALEJANDRO HERNANDEZ HERNANDEZCredential: MD

Location Address2810 W EXPRESSWAY 83Mercedes, TX 78570-9704

Mailing Address2410 San AlejandroMission, TX 78572-7281 · (512) 287-1532 · Fax (956) 215-7459

Phone(956) 734-9067

Fax(956) 734-9068

Sole ProprietorYes

Medical School CMSOtherGraduated 2000

Enumeration DateJune 25, 2014

Last NPPES UpdateJuly 6, 20245 updates tracked since enumeration

NPPES CertifiedJune 18, 2021

✔ NPI 1871908178 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPreventive Medicine · Undersea and Hyperbaric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083P0011X

License✔ Licensed in TX · R0246

Definition

A specialist who treats decompression illness and diving accident cases and uses hyperbaric oxygen therapy to treat such conditions as carbon monoxide poisoning, gas gangrene, non-healing wounds, tissue damage from radiation and burns and bone infections. This specialist also serves as consultant to other physicians in all aspects of hyperbaric chamber operations and assesses risks and applies appropriate standards to prevent disease and disability in divers and other persons working in altered atmospheric conditions.

Also ListedEmergency Medicine · Undersea and Hyperbaric MedicineTaxonomy 207PE0005X · License R0246 (TX)

Also ListedFamily MedicineTaxonomy 207Q00000X · License BP10051015 (TX), R0246 (TX)

2810 W EXPRESSWAY 83, Mercedes, TX 78570

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Other Identifiers 2

Medicaid3740813-10TX

OtherH08HW01401TX · Bcbs

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Alejandro Hernandez Hernandez 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 ID8527354554

PECOS Enrollment IDI20170804000714

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 Alejandro Hernandez Hernandez reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rgv Wound Care Hyperbaricmedicine And Lymphedema Management Group PLLC

2.9 mi

Undersea and Hyperbaric Medicine

1200 E RIDGE RD STE 6
Mcallen, TX 78503

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

NPI 1164028155 (956) 331-8150

Hero Family Medicine Group PLLC

2.9 mi

Family Medicine

1200 E SAVANNAH AVE STE 8
Mcallen, TX 78503

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

NPI 1558977835 (956) 731-4014

Mission Dialysis Access Center, PA

3.8 mi

Vascular & Interventional Radiology

1317 ST CLAIRE BLVD STE A5
Mission, TX 78572

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

NPI 1174107569 (956) 997-6111

Shavano Emergency Medicine Associates, PA

5.7 mi

Emergency Medicine

4702 S MCCOLL RD
Edinburg, TX 78539

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

NPI 1255820775 (956) 213-2600

South Texas Clinicians Association PLLC

6.2 mi

Family Medicine

300 N NEBRASKA AVE
San Juan, TX 78589

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

NPI 1932890498 (512) 287-1532

Chiron Wound Specialists PLLC

6.3 mi

Family Medicine

1412 GRAMBLING AVE
Mcallen, TX 78504

Reassigned Medicare billing, Texas enrollment

NPI 1063230126 (956) 246-1747

Edinburg Emergency Medicine Associates PA

6.6 mi

Emergency Medicine

1102 W TRENTON RD
Edinburg, TX 78539

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

NPI 1942467113 (956) 388-6600

Municipal Emergency Medicine Associates, PA

12 mi

Emergency Medicine

3615 N. INTERSTATE 69C
Edinburg, TX 78541

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

NPI 1396250650 (956) 259-2100

Quality Healthcare Family Medicine PLLC

118 mi

Family Medicine

2605 N ARKANSAS AVE
Laredo, TX 78043

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

NPI 1194359877 (956) 568-3970

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 23

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 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.

742 services186 patients

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.

618 services138 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

299 services73 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

257 services77 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

210 services46 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

210 services54 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.

126 services112 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

124 services53 patients

Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348

An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.

115 services43 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

77 services34 patients

Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349

An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.

73 services28 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

69 services63 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 99307

A follow-up nursing facility visit per day typically lasts about 10 minutes. This service involves a healthcare professional checking on your health status, answering any questions you may have, and monitoring your progress. This routine check ensures your recovery is on track and any concerns are addressed promptly.

57 services31 patients

Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 99350

An established patient home visit is a service where a healthcare professional visits a patient's home for a check-up or treatment. The visit typically lasts for about an hour. This service is especially beneficial for patients who may have difficulty traveling to a healthcare facility.

41 services17 patients

Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a G0179

This procedure involves a doctor or approved practitioner reviewing your health status and re-certifying your need for Medicare-covered home health services. It includes communication with the home health agency and assessment of your health reports, even when you're not physically present.

27 services17 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

24 services15 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

18 services18 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

17 services14 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

17 services14 patients

Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes 99344

A new patient home visit is a comprehensive service where a healthcare professional visits your home for about an hour. This visit includes an overall health assessment, discussion about your medical history, and planning for future healthcare needs. The goal is to understand your health status and provide personalized care.

16 services16 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

16 services13 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

14 services14 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

12 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Valley Baptist Medical Center- Brownsville

Acute Care Hospitals · Brownsville, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450028

Location1040 W Jefferson StBrownsville, TX 78520 · Cameron County

Emergency services Birthing friendly

South Texas Health System

Acute Care Hospitals · Edinburg, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450119

Location1102 W Trenton RoadEdinburg, TX 78539 · Hidalgo County

Emergency services Birthing friendly

Knapp Medical Center

Acute Care Hospitals · Weslaco, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450128

Location1401 East Eight StreetWeslaco, TX 78596 · Hidalgo County

Emergency services Birthing friendly

Doctors Hospital Of Laredo

Acute Care Hospitals · Laredo, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450643

Location10700 Mcpherson RoadLaredo, TX 78041 · Webb 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 78570 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.

81.44/100

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

Scored as part of a group practice

Quality

65.83

Promoting Interoperability

Improvement Activities

Cost

49.23

Referred Medical Equipment & Supplies CMS DME claims 17

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

Tape, waterproof, per 18 square inches A4452

DME-Medical/Surgical Supplies · category DA000N

4 suppliers63 claims6,184 services$0.37 avg. paid by Medicare

Collagen based wound filler, dry form, sterile, per gram of collagen A6010