Giomer Jacob Calacsan, AGACNP-BC

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

1029709 Issued in TX

Practice address

9250 Pinecroft Dr Ste N2.101
Shenandoah, TX 77380-3218

Phone

(713) 897-2307

NPI assigned

Mar 17, 2021

Last updated

Aug 26, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Houston Methodist Specialty PhysiciansGroup PAC ID 5193239796, 1,498 clinicians

TMH Physician Associates PLLCGroup PAC ID 4486711744, 1,881 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Houston Methodist Hospital Hospital, Houston, TX, CCN 450358

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gcalacsan206398@direct.kelsey-seybold.com
• Direct secure messaging: gcalacsan373071@directhoustonmethodist.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.

• Houston Methodist Specialty Physicians

  • Otolaryngology Physician
  • Houston, TX
  • NPI 1902614332

  Multi-Specialty

  Medicare reassignment Care Compare group NPD
• TMH Physician Associates PLLC

  • Ophthalmology Physician
  • Houston, TX
  • NPI 1275779225

  Multi-Specialty

  Medicare reassignment Care Compare group NPD
• Kelsey-Seybold Medical Group, PLLC

  dba Kelsey Seybold Clinic

  • Multi-Specialty Clinic/Center
  • Houston, TX
  • NPI 1013915255
  Medicare reassignment NPD
• Dispatchhealth-Texas P a

  • Emergency Medicine Physician
  • Houston, TX
  • NPI 1649787896

  Multi-Specialty

  NPD
• TMH Physician Associates PLLC

  • Orthopaedic Surgery Physician
  • Spring, TX
  • NPI 1043061351
  NPD
• Memorial Hermann Medical Group

  • Family Medicine Physician
  • Fulshear, TX
  • NPI 1003985102

  Multi-Specialty

  NPD (past)

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

• The Methodist Hospital

  dba Houston Methodist Hospital

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1548387418
  Care Compare affiliation

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

{
    "created_epoch": "1615939200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756166400000",
    "number": "1932784279",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11511 SHADOW CREEK PKWY",
            "city": "PEARLAND",
            "state": "TX",
            "postal_code": "775847298",
            "telephone_number": "713-442-0000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9250 PINECROFT DR STE N2.101",
            "city": "SHENANDOAH",
            "state": "TX",
            "postal_code": "773803218",
            "telephone_number": "713-897-2307"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2727 W Holcombe Blvd",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770251669",
            "country_code": "US",
            "telephone_number": "713-442-0000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CALACSAN",
        "first_name": "GIOMER",
        "middle_name": "JACOB",
        "credential": "AGACNP-BC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-17",
        "last_updated": "2025-08-26",
        "certification_date": "2025-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "TX",
            "license": "1029709",
            "primary": true
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "TX",
            "license": "1029709",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sayl Bunyan, M.D.
• Angela Burk, M.A., NCC, LPC-A
• Guy T Burrows, M.D.
• Jolene Kenna Burton, PHARMD
• Jennifer Nicole Bush, MD
• Jennifer Louise Cameron
• James Camp, NP
• Jill G Campbell
• Candid Therapy & Associates
• Marie Cannon, OTD, OTR/L

• Acute Care Nurse Practitioner in Shenandoah, TX
• Providers in Shenandoah, TX by specialty
• Acute Care Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 26, 2025; 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.