Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HAROLD JASON BLALOCK M.D.
NPI 1730118696
Urology in Jackson, MS

Q: What is Harold Blalock's NPI number?

The NPI number for Harold Blalock is 1730118696. It was assigned to this individual provider in the NPPES registry on July 2, 2006.

Q: What is Harold Blalock's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Harold Blalock was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 02, 2006PECOS EnrolledAccepts Medicare Assignment

99.15/100

CMS Quality Rating

501 MARSHALL ST. SUITE 301, JACKSON, MS 39202(601) 353-9900(601) 353-3654 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 29, 2026, Aug 1, 2019 (2 updates tracked since 2019).

On this page

About Harold Jason Blalock M.d. NPPES

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

HAROLD JASON BLALOCK M.D. (NPI 1730118696) is an individual urology provider in Jackson, Mississippi, licensed in Mississippi (17167) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with St Dominic-jackson Memorial Hospital, and is a graduate of University Of Mississippi School Of Medicine (1995).

NPPES Registry Identity

NPI1730118696

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameHAROLD JASON BLALOCKCredential: M.D.

Location Address501 MARSHALL ST. SUITE 301Jackson, MS 39202

Mailing Address501 Marshall St. Suite 301Jackson, MS 39202 · (601) 353-9900 · Fax (601) 353-3654

Phone(601) 353-9900

Fax(601) 353-3654

Sole ProprietorNo

Medical School CMSUniversity Of Mississippi School Of MedicineGraduated 1995

Enumeration DateJuly 2, 2006

Last NPPES UpdateSeptember 29, 20262 updates tracked since enumeration

✔ NPI 1730118696 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

License✔ Licensed in MS · 17167

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

501 MARSHALL ST. SUITE 301, Jackson, MS 39202

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Other Identifiers 4

Other340019033MS · Medicare - Railroad

Other13012MS · American Board Of Urology

Other02701951231MS · American Medical Assoc.

Medicaid0124443MS

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Alabama, Cigna Healthcare, Oscar Health Plan, Inc. 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

Harold Jason Blalock M.d. 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 ID244273183

PECOS Enrollment IDI20050602000355

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 Reassignment

Medicare enrollment records show Harold Blalock reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mississippi Urology Clinic, PLLC

0.9 mi

Urology

501 MARHSALL ST, SUITE 301
Jackson, MS 39202

Reassigned Medicare billing, Mississippi enrollment
13 clinicians in this Medicare group

NPI 1902837313 (601) 353-9900

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 50

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

12,400 services127 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.

1,326 services939 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

1,231 services850 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

1,100 services755 patients

Detection test by nucleic acid for organism, amplified probe technique 87798

A nucleic acid detection test is a procedure to identify specific organisms in your body. This test uses an amplified probe technique, which magnifies the genetic material of the organism, making it easier to detect. It's a precise way to diagnose infections.

533 services38 patients

Leuprolide acetate (for depot suspension), 7.5 mg J9217

Leuprolide acetate is a medication that helps regulate certain hormone levels in your body. It's injected into your muscle once a month. This treatment can help manage various health conditions related to hormone imbalance. Always follow your doctor's instructions.

453 services54 patients

Manual urinalysis test with examination using microscope, automated 81001

A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.

274 services241 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

232 services188 patients

Detection test for candida species (yeast), amplified probe technique 87481

This test helps identify Candida, a type of fungus often present in the human body. An amplified probe technique is used, which enhances detection of the fungus in a sample. This method increases the accuracy of the test, helping to determine the best treatment.

205 services38 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

202 services181 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

161 services154 patients

Blood creatinine level 82565

A blood creatinine level test measures the amount of creatinine in your blood. Creatinine is a waste product that your body produces when it uses energy. High levels may indicate that your kidneys aren't working properly. This test is often used to monitor kidney health.

132 services130 patients

Detection test by nucleic acid for multiple organisms, amplified probe(s) technique 87801

This is a test that identifies various microorganisms in your body using a method called amplified probe technique. It targets specific genetic material (nucleic acids) of the organisms, amplifying them for easy detection. This helps in diagnosing infections accurately.

123 services38 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.

109 services102 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

85 services85 patients

Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle 96402

This procedure involves the injection of hormone-based anti-cancer drugs under the skin or into a muscle. These medications help to slow down or stop the growth of certain types of cancer cells. The process is usually quick and can be performed in a clinic or hospital.

84 services59 patients

Complete ultrasound scan of pelvis 76856

A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.

82 services78 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.

78 services78 patients

Ultrasound scan of pelvic region through rectum 76872

An ultrasound scan of the pelvic region through the rectum is a medical procedure where a small, smooth device is gently inserted into the rectum. This device uses sound waves to create images of the internal structures in the lower abdomen, aiding in diagnosis and treatment planning.

70 services70 patients

Biopsy of prostate gland 55700

A biopsy of the prostate gland is a procedure where a small sample of tissue is taken from your body's internal gland, located near the bladder, for testing. This helps in diagnosing potential health issues. It's usually done with a fine needle and imaging technology for accuracy.

69 services69 patients

Injection procedure for imaging of bladder during voiding 51600

This procedure involves injecting a safe, contrasting material into your bladder through a small tube. This helps capture clear images during voiding. The process helps doctors understand your bladder's function better and identify any potential issues.

62 services54 patients

Shock wave crushing of kidney stones 50590

Shock wave crushing of kidney stones, also known as Extracorporeal Shock Wave Lithotripsy (ESWL), is a non-invasive treatment. It involves the use of sound waves to break down kidney stones into small pieces that can easily pass through your urinary tract.

42 services39 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

41 services41 patients

Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique 87500

The detection test by nucleic acid for vancomycin-resistant strep (VRE) is a laboratory procedure. It uses an amplified probe technique to identify specific genetic material in bacteria. This helps determine if the bacteria are resistant to the antibiotic vancomycin.

41 services38 patients

Detection test by nucleic acid for staphylococcus aureus, methicillin resistant (mrsa bacteria), amplified probe technique 87641

A detection test by nucleic acid for MRSA bacteria uses an amplified probe technique. It's a lab procedure that identifies the presence of MRSA, a type of bacteria resistant to many antibiotics. This test helps in deciding the best treatment.

41 services38 patients

Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique 87651

This test detects Group A Streptococcus bacteria in your body. It uses an amplified probe technique, which amplifies the bacteria's nucleic acid, making it easier to identify. This test helps diagnose conditions like strep throat or scarlet fever.

41 services38 patients

Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique 87653

A detection test by nucleic acid for Group B Strep uses an amplified probe technique. This test identifies the presence of Group B Strep bacteria in the body. It involves collecting a sample, usually a swab, which is then examined in a lab for the bacteria's genetic material.

41 services38 patients

Insertion of implant in urethra within prostate gland using an endoscope, each additional implant 52442

This procedure involves placing additional tiny implants in the prostate gland using a special viewing device. It's a common method to address certain health concerns. The process is done carefully to ensure minimal discomfort.

40 services12 patients

Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings 51784

This procedure involves the use of non-invasive devices to record the electrical activity of muscles at specific body openings. It's helpful in understanding muscle function and can assist in diagnosing certain conditions.

39 services32 patients

Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique 87640

A detection test for Staphylococcus aureus uses a method called the amplified probe technique. This method identifies the bacteria's unique genetic material, or nucleic acid, helping to confirm its presence. It's a highly accurate way to detect this type of bacteria.

39 services36 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

39 services22 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

38 services38 patients

Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies 51729

This procedure helps to measure the pressure inside your bladder while passing fluid. It checks how well your bladder and the tube that carries fluid from your bladder are working. It's important for diagnosing issues with fluid flow and storage.

37 services30 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

36 services33 patients

Insertion of device into abdomen with pressure and urine flow rate study 51797

This procedure involves placing a small device into your abdomen to monitor pressure and urine flow rates. It helps in understanding how well your body is processing and eliminating liquid waste. It's a safe procedure, typically performed under local anesthesia.

35 services28 patients

Surgical removal of prostate and surrounding lymph nodes using an endoscope 55866

This is a minimally invasive procedure where a small camera (endoscope) is used to remove a gland located in the lower body and nearby small filtering structures. It's done to prevent the spread of unwanted cells and improve overall health.

28 services28 patients

Removal of prostate gland using an electrocautery knife through urethra with control of bleeding using an endoscope 52601

This procedure involves the careful removal of a small gland located in the lower body using a special heated knife, inserted through a natural body passage. An endoscope, a thin tube with a light and camera, helps to manage any bleeding. The aim is to alleviate discomfort and improve overall health.

25 services25 patients

Simple bladder irrigation and/or instillation 51700

Bladder irrigation and/or instillation is a process where a sterile solution is introduced into the bladder to cleanse it or deliver medication. This procedure helps manage certain bladder conditions, ensuring optimal bladder health.

22 services19 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

22 services22 patients

Insertion of stent in ureter using an endoscope 52332

This procedure involves placing a small, flexible tube (stent) in your body's drainage system to help urine flow from the kidneys to the bladder. An endoscope, a thin tube with a light and camera, is used for precise placement.

19 services15 patients

Testosterone (hormone) level, total 84403

A total testosterone level test measures the amount of a key hormone in your body. This hormone influences various body functions such as muscle mass, energy levels, and mood. The test involves a simple blood draw, and results help monitor health conditions.

19 services17 patients

Biopsy of bladder using an endoscope 52204

A biopsy of the bladder using an endoscope is a procedure where a small sample of bladder tissue is collected for testing. An endoscope, a flexible tube with a light and camera, is used to see inside the bladder. This helps to identify any abnormal areas. The procedure helps in the diagnosis of various conditions.

17 services15 patients

Crushing of stone of ureter using an endoscope 52353

This procedure involves using a thin, flexible instrument called an endoscope to reach a stone in your ureter. The stone is then broken into small pieces using a special tool. These pieces can then pass out of the body naturally.

17 services17 patients

Complete laser vaporization of prostate including control of bleeding using an endoscope 52648

This procedure involves using a special light instrument to carefully remove tissue from a gland located in the lower body. This helps improve the flow of body fluids. The process is done through a tube-like device and also controls any bleeding.

16 services16 patients

Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope 52310

This is a procedure to remove an object, stone, or tube from your urinary tract. An endoscope, a thin, flexible tube with a light and camera, is used to locate and remove the object. It is a safe and effective way to address the issue.

13 services12 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

13 services12 patients

Insertion of implant in urethra within prostate gland using an endoscope, 1 implant 52441

This procedure involves placing a small device in the urinary tract using a scope. The device is placed within the prostate gland, which helps manage urinary flow. It's a minimally invasive procedure that aids in improving your comfort and health.

12 services12 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

12 services12 patients

Injection of biodegradable material next to prostate 55874

This procedure involves the introduction of a biodegradable substance near a gland located in the lower abdomen. This substance helps to create a barrier between the gland and nearby tissues, aiding in the precise delivery of treatment to the intended area.

11 services11 patients

Placement of device in prostate for radiation therapy 55876

This procedure involves placing a small device in the gland below the bladder to deliver radiation therapy. This helps target therapy directly to the concerned area, potentially reducing side effects and improving treatment effectiveness.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

St Dominic-Jackson Memorial Hospital

Acute Care Hospitals · Jackson, MS

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number250048

Location969 Lakeland DrJackson, MS 39216 · Hinds County

Emergency services Birthing friendly

Mississippi Baptist Medical Center

Acute Care Hospitals · Jackson, MS

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number250102

Location1225 N State StJackson, MS 39202 · Hinds County

Emergency services Birthing friendly

Copiah County Medical Center

Critical Access Hospitals · Hazlehurst, MS

OwnershipGovernment - Local

CMS Certification Number251327

Location21790 Highway 28Hazlehurst, MS 39083 · Copiah County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39202 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

$120.41 typical visit price

range $51.65 – $159.18

Typical copayment $30.10 (range $12.91 – $39.79)

Most-billed visit code 99204

Established Patient

$64.96 typical visit price

range $16.15 – $129.61

Typical copayment $16.24 (range $4.03 – $32.40)

Most-billed visit code 99213

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.

99.15/100

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

Scored as part of a group practice

Promoting Interoperability

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 3

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

Lubricant, individual sterile packet, each A4332

DME-Medical/Surgical Supplies · category DA000N

3 suppliers44 claims7,150 services$0.10 avg. paid by Medicare

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

2 suppliers28 claims5,300 services$1.57 avg. paid by Medicare

Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352

DME-Orthotic Devices · category DF008N

4 suppliers24 claims3,200 services$5.75 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Harold Blalock's NPI number?

The NPI number for Harold Blalock is 1730118696. It was assigned to this individual provider in the NPPES registry on July 2, 2006.

Where is Harold Blalock located?

Harold Blalock practices at 501 Marshall St. Suite 301, Jackson, MS 39202. The listed phone number is (601) 353-9900.

What is Harold Blalock's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Harold Blalock enrolled in Medicare?

Yes. Harold Blalock is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Harold Blalock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Harold Blalock reassigns Medicare benefits to Mississippi Urology Clinic, PLLC (Jackson, MS). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Harold Blalock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Harold Blalock accept?

Health plans from Blue Cross and Blue Shield of Alabama, Cigna Healthcare, Oscar Health Plan, Inc. and UnitedHealthcare list Harold Blalock as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Harold Blalock affiliated with any hospitals?

According to CMS data, Harold Blalock is affiliated with St Dominic-Jackson Memorial Hospital, Mississippi Baptist Medical Center and Copiah County Medical Center.

When was this NPI record last updated?

The NPPES record for Harold Blalock was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.