Doctor profile · Federal record
Dr. Diane Darcy, MS, RD, LDN
Registered Dietitian · Rockville, MD
- NPI 1336449420
- 16 yrs on file
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
15825 Shady Grove RD, Suite 140
Rockville, MD 208504008
(301) 869-9776 - Mailing address
-
14408 Kings Grant St
North Potomac, MD 208782572
Credentials & registration
- NPI registered
- October 2010 — 16 yrs on file
- Profile last updated
- June 25, 2014
- Specialty taxonomy
- 133V00000X — NUCC code
- State license (1)
- Maryland #D01479
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336449420. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
146
Distinct HCPCS
2
Medicare allowed
$4,935
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
97802 |
Therapy procedure for nutrition management, each 15 minutes | 96 | 29 | $35 | |
97803 |
Therapy procedure reassessment for nutrition management, each 15 minutes | 50 | 13 | $31 |
In context: peer comparison
Among 2 peers in Rockville Registered Dietitian, average services per provider: 65. This provider delivers 2.2× the peer median.Frequently asked questions
What is Dr. Diane Darcy's medical specialty?
Dr. Diane Darcy practices Registered Dietitian in Rockville, MD.
Where does Dr. Diane Darcy practice?
Dr. Diane Darcy practices at 15825 Shady Grove RD, Rockville, MD 208504008. Office phone: 3018699776.
What is Dr. Diane Darcy's NPI?
Dr. Diane Darcy's National Provider Identifier (NPI) is 1336449420, issued by NPPES.
What procedures does Dr. Diane Darcy commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure for nutrition management (HCPCS 97802); Therapy procedure reassessment for nutrition management (HCPCS 97803). Source: CMS Medicare Physician & Other Practitioners file.