Regina Rajagopala Pillai, M.D.

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

P2343 Issued in TX

Practice address

600 N Kobayashi Ste 208
Webster, TX 77598-4841

Phone

(281) 724-8180

Fax

(281) 336-1171

NPI assigned

Sep 9, 2007

Last updated

Mar 17, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Pulmonary DiseaseAlso: Critical Care (Intensivists), Internal Medicine

Education

Other, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

CLS Health PLLCGroup PAC ID 7214962117, 176 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Houston Methodist Clear Lake Hospital Hospital, Nassau Bay, TX, CCN 450709
• HCA Houston Healthcare Clear Lake Hospital, Webster, TX, CCN 450617
• Memorial Hermann Hospital System Hospital, Houston, TX, CCN 450184
• Houston Methodist Baytown Hospital Hospital, Baytown, TX, CCN 450424
• Pam Rehabilitation Hospital of Clear Lake Inpatient rehabilitation facility, Webster, TX, CCN 673061

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as individual

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/CFFDBA
• Direct secure messaging: regina.pillai@cls.eclinicaldirectplus.com
• Direct secure messaging: rpillai468811@direct.stlukeshealth.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• CLS Health PLLC

  dba CLS Health

  • Pulmonary Disease Physician
  • Webster, TX
  • NPI 1750305355

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Clear Lake Hospitalists PA

  • Internal Medicine Physician
  • Webster, TX
  • NPI 1467476051
  Medicare reassignment NPD
• Cardiovascular Care Providers, Inc.

  • Specialist
  • Houston, TX
  • NPI 1437242617
  NPD (past)
• Clear Lake Primary Care PLLC

  • Family Medicine Physician
  • Webster, TX
  • NPI 1861743247

  Internal Medicine

  NPD (past)
• CLS Health PLLC

  • Durable Medical Equipment & Medical Supplies
  • Webster, TX
  • NPI 1699682054
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Chca Clear Lake LP

  dba HCA Houston Healthcare Clear Lake

  • General Acute Care Hospital
  • Webster, TX
  • NPI 1063466035
  Care Compare affiliation
• Clear Lake Institute for Rehabilitation LLC

  dba PAM Rehabilitation Hospital of Clear Lake

  • Rehabilitation Hospital
  • Webster, TX
  • NPI 1861882532

  Inpatient rehabilitation facility

  Care Compare affiliation
• Houston Methodist St. John Hospital

  dba Houston Methodist Clear Lake Hospital

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1952723967
  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS NW Radiation Therapy

  • Radiology Clinic/Center
  • Houston, TX
  • NPI 1013948553

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Woodlands Outpatient Imaging System

  • Radiology Clinic/Center
  • The Woodlands, TX
  • NPI 1275564858

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba Memorial Hermann Outpatient Imaging-Southwest

  • Radiology Clinic/Center
  • Houston, TX
  • NPI 1407959448

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Friendswood Imaging

  • Radiology Clinic/Center
  • Friendswood, TX
  • NPI 1508896267

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Pearland Outpatient Imaging Center

  • Radiology Clinic/Center
  • Pearland, TX
  • NPI 1669402335

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1730132234
  Care Compare affiliation
• San Jacinto Methodist Hospital

  dba Houston Methodist Baytown Hospital

  • General Acute Care Hospital
  • Baytown, TX
  • NPI 1891789772
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1189296000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773705600000",
    "number": "1720273121",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 58538",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775988538",
            "telephone_number": "281-724-8180",
            "fax_number": "281-336-1171"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 N KOBAYASHI STE 208",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775984841",
            "telephone_number": "281-724-8180",
            "fax_number": "281-336-1171"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14100 Southwest Fwy Ste 400",
            "address_purpose": "LOCATION",
            "city": "Sugar Land",
            "state": "TX",
            "postal_code": "774783465",
            "country_code": "US",
            "telephone_number": "346-474-1934",
            "fax_number": "346-472-2278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 N Kobayashi Ste C",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984722",
            "country_code": "US",
            "telephone_number": "281-816-3092",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "14100 Southwest Fwy Ste 415",
            "address_purpose": "LOCATION",
            "city": "Sugar Land",
            "state": "TX",
            "postal_code": "774783466",
            "country_code": "US",
            "telephone_number": "346-474-1934",
            "fax_number": "346-472-2278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Kobayashi Ste 309",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984841",
            "country_code": "US",
            "telephone_number": "281-724-8332",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "905 W Medical Center Blvd Ste 102",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984009",
            "country_code": "US",
            "telephone_number": "346-688-0043",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4615 Southwest Fwy Ste 900",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770277191",
            "country_code": "US",
            "telephone_number": "346-250-5520",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 N Kobayashi Ste A",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984722",
            "country_code": "US",
            "telephone_number": "281-724-8180",
            "fax_number": "281-336-1171",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Kobayashi Ste 110",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984841",
            "country_code": "US",
            "telephone_number": "281-338-1701",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PILLAI",
        "first_name": "REGINA",
        "middle_name": "RAJAGOPALA",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-09-09",
        "last_updated": "2026-03-17",
        "certification_date": "2026-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "P2343",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "TX",
            "license": "P2343",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "TX",
            "license": "P2343",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jayla Michelle Phillips, MD
• Peggy Marie Phillips, RN-BC, ANP-C
• Melissa Marie Pichardo
• Morgan Pifer
• Zoe Tramel Pilares, MD
• Stephanie Catherine Pilsner, SLP-CCC, BCBA
• Piyuse Das DDS PA (Clear Lake Dental Care)
• Planet Health Center, PLLC (Planet Health)
• Mary Poag, MD
• Podiatry of Clear Lake, PLLC

• Pulmonary Disease Physician in Webster, TX
• Providers in Webster, TX by specialty
• Pulmonary Disease Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.