Doctor profile · Federal record
Dr. Gregory Horn, M.D.
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Obstetrics & Gynecology Physician · Ocean Springs, MS
- NPI 1659371128
- Accepts Medicare
- 33 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
21 Doctors Dr
Ocean Springs, MS 395645709
(228) 872-1505
fax (228) 872-8575
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- October 19, 2010
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State licenses (2)
- Mississippi #15343 · Louisiana #021971
- Medicaid
- MS #00118187
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659371128. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
91
Distinct HCPCS
3
Medicare allowed
$4,916
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 35 | 25 | $82 | |
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 30 | 30 | $35 | |
Q0091 |
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 26 | 26 | $38 |
In context: peer comparison
Among 2 peers in Ocean Springs Obstetrics & Gynecology Physician, average services per provider: 70. This provider delivers 1.3× the peer median.Open Payments
Industry payments received
All-time total
$218
Transactions
12
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Ethicon US, LLC | 2 | $52.07 | |
| Abbvie INC. | 3 | $48.63 | |
| Sage Therapeutics, INC. | 1 | $26.01 | |
| Mayne Pharma Commercial LLC | 2 | $20.80 | |
| Vertex Pharmaceuticals Incorporated | 1 | $19.14 | |
| Davol INC. | 1 | $18.43 | |
| Pfizer INC. | 1 | $18.42 | |
| Lilly USA, LLC | 1 | $14.54 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
582
Patients
109
Total drug cost
$31,217
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 258 | 59 | $4,759 |
| Alprazolam | Generic | 56 | 0 | $128 |
| Medroxyprogesterone Acetate | Generic | 44 | 0 | $566 |
| Clotrimazole-Betamethasone (Clotrimazole/Betamethasone Dip) | Brand | 36 | 21 | $913 |
| Premarin (Estrogens, Conjugated) | Brand | 28 | 0 | $10,878 |
| Fluconazole | Generic | 27 | 18 | $141 |
| Myrbetriq (Mirabegron) | Brand | 20 | 0 | $9,815 |
| Valacyclovir (Valacyclovir Hcl) | Brand | 18 | 0 | $612 |
| Ciprofloxacin Hcl | Generic | 17 | 11 | $101 |
| Estradiol-Norethindrone Acetat (Estradiol/Norethindrone Acet) | Brand | 15 | 0 | $1,859 |
Hospital affiliations
Frequently asked questions
What is Dr. Gregory Horn's medical specialty?
Dr. Gregory Horn practices Obstetrics & Gynecology Physician in Ocean Springs, MS.
Where does Dr. Gregory Horn practice?
Dr. Gregory Horn practices at 21 Doctors Dr, Ocean Springs, MS 395645709. Office phone: 2288721505.
What is Dr. Gregory Horn's NPI?
Dr. Gregory Horn's National Provider Identifier (NPI) is 1659371128, issued by NPPES.
Does Dr. Gregory Horn accept Medicare assignment?
Yes. Dr. Gregory Horn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Horn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (HCPCS Q0091). Source: CMS Medicare Physician & Other Practitioners file.