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Edit this profileAt a glance
- 4500 San Pablo Rd S, Jacksonville, FL 32224
About Dr. Johns
Based in Jacksonville, FL, Gretchen Johns, MD is listed in the NPI registry under pathology — clinical. According to Medicare claims data, Gretchen cared for 7,627 Medicare patients across 17,972 services. The services billed most often include insertion of needle into vein for collection of blood sample, blood test, clotting time, and blood creatinine level. NPI 1750301172 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (904) 953-2000
- Email not available
Practice Locations
4500 SAN PABLO RD S
Jacksonville, FL 32224
Conditions Evaluated or Diagnosed
Within Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Autoimmune & Joints
Autopsy & Forensic
Blood & Metabolism
Blood Disorders
- Bleeding Disorders
- Blood Clotting Gene Mutation
- Iron-deficiency anemia
- Leukemia
- Lymphoma
- Multiple Myeloma
- Sickle cell disease
Cancer
- Bladder cancer
- Bone tumors
- Brain tumor
- Breast cancer
- Cervical cancer
- Colon cancer
- Endometrial cancer
- Kidney cancer
- Liver cancer
- Lung cancer
- Oral cavity cancer
- Ovarian cancer
- Pancreatic cancer
- Prostate cancer
- Soft-tissue sarcoma
- Stomach cancer
- Testicular cancer
- Thyroid cancer
Cervical & Gynecologic
Digestive
Digestive System
Endocrine
Genetics
Hormones
Immune System
Infections
Kidney
Liver
Metabolic & Routine Lab
Pregnancy & Fertility
Skin Cancer
Women's Health
Procedures & services
Cytology & Screening
- Fine-needle aspiration of a neck mass
- Human papillomavirus testing
- Pap Smear Test
- Thyroid Nodule Biopsy Review
Autopsy & Forensic
Blood Tests
- Blood Clotting Tests
- Blood Type Test
- Cholesterol screening
- Complete Blood Count
- Comprehensive Metabolic Panel
- Hemoglobin A1c Test
- Iron Level Blood Test
- Thyroid Blood Test
Cytology
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
- Cardiac enzyme blood test
- Pregnancy blood test
- Sed rate inflammation test
- Testosterone blood test
- Vitamin D blood test
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
- Bone Marrow Biopsy Interpretation
- Breast Biopsy Analysis
- Cervical biopsy lab review
- Colon Polyp Testing
- Kidney Biopsy Examination
- Liver Biopsy Examination
- Lung biopsy lab review
- Lymph Node Biopsy Analysis
- Oral biopsy lab review
- Prostate Biopsy Analysis
- Skin Biopsy Lab Review
- Stomach biopsy lab review
- Uterine biopsy lab review
Procedures Most Often Billed to Medicare
17,972 services · 7,627 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
16,273 | Too few peers to compare |
| Blood test, clotting time | Lab test | 85610 |
870 | Too few peers to compare |
| Blood creatinine level | Lab test | 82565 |
296 | Too few peers to compare |
| Automated urinalysis test | Lab test | 81003 |
276 | Too few peers to compare |
| Blood glucose (sugar) level | Lab test | 82947 |
153 | Too few peers to compare |
| Coagulation function screening test with interpretation and report | Lab test | 85390 |
60 | More often than most peers in Pathology — Clinical |
| Coagulation function screening test with interpretation and report | Lab test | 85390 |
44 | More often than most peers in Pathology — Clinical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pathologists in Jacksonville 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 9 related providers in 2 groups
Class of 1995 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 1
Providers in FL who bill this service to Medicare most often.
Common questions
What is Dr. Johns's specialty?
Dr. Johns is a pathologist in Jacksonville, FL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology — Clinical”.
NPI registry
Where can I find Dr. Johns?
Dr. Johns is listed at 4500 San Pablo Rd S, Jacksonville, FL 32224. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Johns?
The number on file is (904) 953-2000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Johns's NPI number?
Dr. Johns's National Provider Identifier is 1750301172. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Johns's medical education?
Dr. Johns attended Other, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Johns been practicing?
Dr. Johns has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Johns known for?
According to Medicare billing data, Dr. Johns performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Johns confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johns. If this is you, claiming it is free.
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