Active NPI
Harold Jason Blalock, M.D.
- Urology Physician
- Jackson, MS
National Provider Identifier
1730118696
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Urology Physician
- License
- 17167
- Practice address
- 501 Marshall St. Suite 301
Jackson, MS 39202 - Phone
- (601) 353-9900
- Fax
- (601) 353-3654
- NPI assigned
- Jul 2, 2006
- Last updated
- Sep 29, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Urology Physician | 208800000X | 17167 | MS | Primary |
Addresses
Primary practice location
501 Marshall St. Suite 301
Jackson, MS 39202
Mailing address
501 Marshall St. Suite 301
Jackson, MS 39202
Phone (601) 353-9900
Other identifiers 4
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 340019033 | Other | MS | MEDICARE - RAILROAD |
| 13012 | Other | MS | AMERICAN BOARD OF UROLOGY |
| 02701951231 | Other | MS | AMERICAN MEDICAL ASSOC. |
| 0124443 | Medicaid | MS |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MS
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Urology
- Education
- University of Mississippi School of Medicine, 1995
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
501 Marshall St
Suite 301
Jackson, MS 39202-1687
Phone (601) 353-9900
Hospital & facility affiliations
- Mississippi Baptist Medical Center
- St Dominic-Jackson Memorial Hospital
- Copiah County Medical Center
- Merit Health River Oaks
Merit-based Incentive Payment System (MIPS)
- Final score
- 96.6 of 100
- Promoting interoperability
- 96
- Improvement activities
- 40
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Prostate resection | 67 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Mississippi Urology Outpatient Surgery Center, LLC | Current | Accepting new patients |
Locations
501 Marshall St
Ste 201
Jackson, MS 39202
Phone (601) 352-2273
501 Marshall St
Ste 301
Jackson, MS 39202
Interoperability endpoints
- haroldblalock@muc.medalliesdirect.net
Organizations & group practices 4
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.
-
- Urology Physician
- Jackson, MS
- NPI 1902837313
-
- Ambulatory Surgical Clinic/Center
- Jackson, MS
- NPI 1548655053
-
- Non-Pharmacy Dispensing Site
- Flowood, MS
- NPI 1487432852
-
- Non-Pharmacy Dispensing Site
- Flowood, MS
- NPI 1851271159
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Critical Access Hospital
- Hazlehurst, MS
- NPI 1588667281
-
- General Acute Care Hospital
- Jackson, MS
- NPI 1710909585
-
dba Merit Health River Oaks
- General Acute Care Hospital
- Flowood, MS
- NPI 1396792032
-
- General Acute Care Hospital
- Jackson, MS
- NPI 1306876065
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1151798400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1790640000000",
"number": "1730118696",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "501 MARSHALL ST. SUITE 301",
"city": "JACKSON",
"state": "MS",
"postal_code": "39202",
"telephone_number": "601-353-9900",
"fax_number": "601-353-3654"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "501 MARSHALL ST. SUITE 301",
"city": "JACKSON",
"state": "MS",
"postal_code": "39202",
"telephone_number": "601-353-9900",
"fax_number": "601-353-3654"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BLALOCK",
"first_name": "HAROLD",
"middle_name": "JASON",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-07-02",
"last_updated": "2026-09-29",
"status": "A"
},
"taxonomies": [
{
"code": "208800000X",
"taxonomy_group": "",
"desc": "Urology",
"state": "MS",
"license": "17167",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDICARE - RAILROAD",
"identifier": "340019033",
"state": "MS"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "AMERICAN BOARD OF UROLOGY",
"identifier": "13012",
"state": "MS"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "AMERICAN MEDICAL ASSOC.",
"identifier": "02701951231",
"state": "MS"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "0124443",
"state": "MS"
}
],
"endpoints": [],
"other_names": []
}Other providers in Jackson, MS
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 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.