Doctor profile · Federal record
Dr. Gigi Diamond, M.D.
Infectious Disease Physician (CMS: Infectious Disease) · Livingston, NJ
- NPI 1295757359
- Accepts Medicare
- 44 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
349 E Northfield RD, Suite 200
Livingston, NJ 070394802
(973) 597-0900
fax (973) 597-0910
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 4, 2009
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State license (1)
- New Jersey #MA045093
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1295757359. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
676
Distinct HCPCS
4
Medicare allowed
$71,532
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 500 | 90 | $85 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 105 | 89 | $186 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 37 | 21 | $141 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 34 | 13 | $128 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 149. This provider delivers 4.5× the peer median.Open Payments
Industry payments received
All-time total
$366
Transactions
17
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Gilead Sciences, Inc. | 11 | $146.36 | |
| Lilly USA, LLC | 1 | $120.29 | |
| Novartis Pharmaceuticals Corporation | 3 | $66.23 | |
| ViiV Healthcare Company | 1 | $17.73 | |
| Lundbeck LLC | 1 | $15.45 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
472
Patients
30
Total drug cost
$1,717,001
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Biktarvy (Bictegrav/Emtricit/Tenofov Ala) | Brand | 303 | 30 | $1,262,860 |
| Descovy (Emtricitabine/Tenofov Alafenam) | Brand | 35 | 0 | $80,501 |
| Tivicay (Dolutegravir Sodium) | Brand | 27 | 0 | $61,885 |
| Juluca (Dolutegravir/Rilpivirine) | Brand | 18 | 0 | $98,988 |
| Ertapenem (Ertapenem Sodium) | Brand | 17 | 0 | $9,437 |
| Genvoya (Elviteg/Cob/Emtri/Tenof Alafen) | Brand | 15 | 0 | $112,056 |
| Odefsey (Emtricitab/Rilpiviri/Tenof Ala) | Brand | 12 | 0 | $43,550 |
| Prezcobix (Darunavir/Cobicistat) | Brand | 12 | 0 | $31,245 |
| Cefazolin Sodium | Generic | 11 | 0 | $428 |
| Edurant (Rilpivirine Hcl) | Brand | 11 | 0 | $16,043 |
Hospital affiliations
Frequently asked questions
What is Dr. Gigi Diamond's medical specialty?
Dr. Gigi Diamond practices Infectious Disease Physician in Livingston, NJ.
Where does Dr. Gigi Diamond practice?
Dr. Gigi Diamond practices at 349 E Northfield RD, Livingston, NJ 070394802. Office phone: 9735970900.
What is Dr. Gigi Diamond's NPI?
Dr. Gigi Diamond's National Provider Identifier (NPI) is 1295757359, issued by NPPES.
Does Dr. Gigi Diamond accept Medicare assignment?
Yes. Dr. Gigi Diamond accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gigi Diamond commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.