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Dr. Alexander Constantine , MD

Internal Medicine β€’ Houston, TX

Active NPI 1902332901 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

1 Baylor Plz
Houston, TX 770303411

Call 7137985588 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1 Baylor Plz

Houston, TX 770303411

Telephone 7137985588
Organization at the Same NPPES Address or Phone
Baylor College Of Medicine Facility NPI 1326051905

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Houston, TX. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Kelsey-Seybold Medical Group, Pllc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

University Of Texas Medical School At San Antonio

Graduation Year

2017

30-day fills

205 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$9,377 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2017

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Constantine has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Constantine as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Houston and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

Fewer Part D prescriptions than 70% of clinicians listed under Internal Medicine in Houston, TX (2024, 828 clinicians with data). Median for this group: 822. Middle half: 115 to 4,214.

Fewer Part D prescriptions than 70% of clinicians listed under Internal Medicine in Texas (2024, 5,686 clinicians with data). Median for this group: 817. Middle half: 119 to 4,816.

Part D drug cost

A lower Part D drug cost than 70% of clinicians listed under Internal Medicine in Houston, TX (2024, 828 clinicians with data). Median for this group: $114,369. Middle half: $7,402 to $417,758.

A lower Part D drug cost than 65% of clinicians listed under Internal Medicine in Texas (2024, 5,686 clinicians with data). Median for this group: $63,521. Middle half: $3,954 to $436,184.

1,498 active clinicians are listed under Internal Medicine with a practice address in Houston, TX (9,234 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Houston

21.4% of these 1,498 clinicians have the CMS telehealth indicator.

60.9% of these 1,498 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D Β· Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 29 1,635 $522.97 17
Lisinopril Lisinopril 19 697 $92.65 β€”
Amlodipine Besylate Amlodipine Besylate 14 720 $138.44 β€”
Losartan Potassium Losartan Potassium 14 780 $154.56 β€”
Levothyroxine Sodium Levothyroxine Sodium 13 855 $42.87 β€”
Jardiance Empagliflozin 12 420 $8,162.84 β€”
Albuterol Sulfate Hfa Albuterol Sulfate 12 301 $151.78 β€”
Fluticasone Propionate Fluticasone Propionate 11 600 $111.12 β€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2021-09-17
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES TX S9670

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
425869102 (TX)
Medicaid ID
425869103 (TX)
Medicaid ID
425869101 (TX)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20210614002802

Enrollment State Jurisdiction

TX

PECOS Control ID

5193125037

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Kelsey-Seybold Medical Group, Pllc

11555 University Blvd, Sugar Land, TX 774783889

Phone: 7134429100

Secondary Practice Locations

2727 W Holcombe Blvd

Houston, TX 770251669

Phone: 7134420000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

21 listed
Dr. Saif Ali , MD

Internal Medicine

NPI 1174977102

Doctor of Medicine (M.D.)

Ama Annor

Internal Medicine

NPI 1952839052
Laiba Asif

Student in an Organized Health Care Education/Training Program

NPI 1841986155
Dr. Soham Banerjee , MD (JUNE )

Radiology - Diagnostic Radiology

NPI 1609254754

MD(JUNE)

Dr. Kati Choi , MD

Internal Medicine

NPI 1841644820

Doctor of Medicine (M.D.)

Dr. Alexander Hanania , MD

Radiology - Radiation Oncology

NPI 1700230786

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
🏒
Secondary Practice Location Registered September 17, 2021

Additional practice office at 2727 W Holcombe Blvd, Houston, TX 770251669

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 26, 2021

Internal Medicine (license number reported to NPPES: TX S9670)

πŸ“
Updated Business Mailing Address June 08, 2021

Registered at 11511 SHADOW CREEK PKWY, PEARLAND, TX 775847298 (Tel: 7134424997)

πŸ“
Updated Business Mailing Address February 28, 2020

Registered at 1 BAYLOR PLZ, HOUSTON, TX 770303411

βœ…
NPI Profile Active May 11, 2017

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) May 11, 2017

Registered at 1 BAYLOR PLZ, HOUSTON, TX 770303411 (Tel: 7137985588)

πŸ“
Business Mailing Address (Initial Record) May 11, 2017

Registered at 5450 ROWLEY RD APT 610, SAN ANTONIO, TX 782404713 (Tel: 2104526761)

πŸ‘€
Provider Name / Credentials (Initial Record) May 11, 2017

Recorded as ALEXANDER CONSTANTINE, M.D.

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 11, 2017

Student in an Organized Health Care Education/Training Program (license number reported to NPPES: TX BP10060323)

🟒
Initial NPI Registration & Enumeration May 11, 2017

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1902332901
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 11, 2017
Last Update: September 17, 2021
Sole Proprietor: No

Other Internal Medicine Providers in Houston

All Internal Medicine Providers in Houston

Mailing Address

11511 Shadow Creek Pkwy

Pearland, TX 775847298

Phone: 7134424997

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.