Provider Profile
Diane C. Darcy, MS, RD, LDN
Unclaimed ProfileAbout Diane Darcy
Diane C. Darcy, MS, RD, LDN is a registered dietitian / nutritionist practicing in Rockville, MD. According to Medicare claims data, the services billed most often include therapy procedure for nutrition management, each 15 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (301) 869-9776
- Email not available
Practice Locations
15825 SHADY GROVE RD SUITE 140
Rockville, MD 20850
Conditions Supported and Services
Within Registered Dietitian/Nutritionist 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
Most searched conditions
- Celiac disease
- Diabetes
- Food sensitivities
- High cholesterol
- IBS
- Obesity
Allergies & Immune
- Autoimmune Diseases
- Food allergies
- Histamine Intolerance
Behavioral nutrition
- Orthorexia
Bone Health
- Osteoporosis
Chronic conditions
- Cystic Fibrosis Malabsorption
Digestive Health
- Acid reflux
- Chronic Bloating and Gas
- Chronic pancreatitis
- Constipation
- Diverticulosis and uncomplicated diverticulitis
- Eosinophilic esophagitis
- Gallstones
- Gastroparesis
- Inflammatory bowel disease
- Small intestinal bacterial overgrowth
Digestive health
- Candida Overgrowth
- Chronic diarrhea
- Fructose Malabsorption
- Gut Health Issues
- Lactose intolerance
- Post-Cholecystectomy Digestion Issues
- Swallowing difficulties
General nutrition
- Chronic fatigue
- Difficulty Gaining Weight
- Unexplained Weight Loss
General Nutrition
- Short stature and growth concerns
Heart & Circulation
- Heart disease
- High blood pressure
Hormonal & Women's Health
- Menopause Weight Gain
- PCOS
- Thyroid problems
Immune & Allergy
- Mast Cell Activation Syndrome
- Red Meat Allergy
Joint & Metabolic Health
- Gout
Kidney Health
- Chronic kidney disease
- Kidney stones
Kidney health
- Polycystic kidney disease
Liver & Metabolic Health
- Fatty liver disease
Liver health
- Cirrhosis of the Liver
Mental & Behavioral Health
- Eating disorders
Metabolic health
- Lipedema
Metabolic Health
- Low Blood Sugar
- Metabolic syndrome
- Prediabetes
Neurological
- Food-Triggered Migraines
Nutritional Deficiencies
- Iron-deficiency anemia
Oncology
- Cancer Treatment Side Effects and Nutrition
Pediatric Health
- Picky Eating and Food Aversion
- Poor Infant Weight Gain
Pregnancy & Women's Health
- Gestational diabetes
Sports & Fitness
- Athlete Low Energy and Overtraining
Surgical Recovery
- Post-Bariatric Surgery Complications
Women's health
- Endometriosis Belly and Inflammation
Procedures & services
Most searched procedures
- Diabetes education
- Gut health coaching
- Meal planning
- Medical nutrition therapy
- Weight loss nutrition
Behavioral Counseling
- Eating Disorder Nutrition Therapy
- Intuitive Eating Coaching
Behavioral nutrition
- Mindful Eating Training
Clinical Nutrition
- Acid Reflux Diet Protocol
- Heart-Healthy DASH Diet Coaching
- IV Nutrition Support
- Kidney Disease Diet Planning
- Oncology Nutrition Consultation
- Senior Nutrition Assessment
- Tube Feeding Management
Coaching & Education
- Carb Counting Training
- Nutrition Fact Label Reading Training
Consultations
- Virtual Nutrition Counseling
Diet protocols
- Anti-Candida Diet Protocol
- Low-Oxalate Diet Coaching
- Low-Purine Diet Consultation
Diet Protocols
- Anti-Inflammatory Diet Coaching
- Autoimmune Protocol Coaching
- Elimination Diet Program
- Gluten-Free Diet Transition Guidance
- Histamine Elimination Diet Coaching
- Ketogenic Diet Coaching
- Low-FODMAP Diet Consultation
- Plant-Based and Vegan Diet Coaching
- SIBO Diet Coaching
Heart health
- Cholesterol-Lowering Portfolio Diet Coaching
Hormonal & Women's Health
- PCOS Diet Consultation
Lifestyle Coaching
- Guided Grocery Store Tour
- Kitchen and Pantry Makeover
Maternal & Infant
- Gestational Diabetes Diet Coaching
- Postpartum and Breastfeeding Nutrition Consultation
- Pregnancy Nutrition Consultation
Medical diet therapy
- Dialysis Nutrition Coaching
- Post-Gallbladder Removal Diet Plan
- Swallowing Problem Pureed Diet Planning
Pediatric nutrition
- Pediatric Dairy-Free Weaning Guidance
Pediatric Services
- Baby-Led Weaning Consultation
- Formula and Breastmilk Fortification Guidance
- Pediatric Picky Eating Therapy
Sports & Fitness
- Muscle Building Macro Planning
- Sports Nutrition Coaching
Surgical Consultations
- Bariatric Surgery Nutrition Clearance
Testing & Assessment
- Body Composition Analysis
- Continuous Glucose Monitor Coaching
- Diet Diary Analysis
- Dietary Supplement Review
- DNA Diet and Nutrigenomics Testing
- Food Sensitivity Testing
- Gut Microbiome Stool Test Review
- Nutrient Deficiency Testing and Review
- Resting Metabolic Rate Test
Weight & Lifestyle
- Intermittent Fasting Coaching
- Weight Gain Meal Planning
Women's health
- Hormone Balancing Diet Coaching
Procedures Most Often Billed to Medicare
52 services · 15 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Therapy procedure for nutrition management, each 15 minutes | Treatment | 97802 |
52 | Less often than most peers in Registered Dietitian /… |
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.
Other registered dietitian / nutritionists at this location 1
Same specialty, same street address — most likely the same department or group.
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 registered dietitian / nutritionists in Rockville 7
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs Therapy procedure for nutrition management, each 15 minutes 8
Providers in MD who bill this service to Medicare most often.
Common questions
What is Diane C. Darcy, MS, RD's specialty?
Diane C. Darcy, MS, RD is a registered dietitian / nutritionist in Rockville, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Diane C. Darcy, MS, RD?
Diane C. Darcy, MS, RD is listed at 15825 Shady Grove Rd Suite 140, Rockville, MD 20850. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Diane C. Darcy, MS, RD?
The number on file is (301) 869-9776. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Diane C. Darcy, MS, RD's NPI number?
Diane C. Darcy, MS, RD's National Provider Identifier is 1336449420. 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
How long has Diane C. Darcy, MS, RD been practicing?
Diane C. Darcy, MS, RD has 16+ years experience. Registered with an NPI since 2010. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Diane C. Darcy, MS, RD known for?
According to Medicare billing data, Diane C. Darcy, MS, RD provides treatments such as therapy procedure for nutrition management, each 15 minutes. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Diane C. Darcy, MS, RD confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Diane C. Darcy, MS, RD. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.