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Edit this profileWhere to find Mallory Sin, LDN, RD
- Boston location main office
One Joslin Place, Boston, MA 02215 - Roxbury location
1290 Tremont St, Roxbury, MA 02120
About Mallory Sin
Mallory Sin, LDN, RD is a registered dietitian / nutritionist based in Boston, MA. According to Medicare claims data, the services billed most often include therapy procedure for nutrition management, each 15 minutes. The provider's National Provider Identifier (NPI) is 1821426826.
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
- (917) 825-0376
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
ONE JOSLIN PLACE
Boston, MA 02215
1290 Tremont St
Roxbury, MA 02120
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
Behavioral nutrition
Chronic conditions
Digestive health
- Fructose Malabsorption
- Post-Cholecystectomy Digestion Issues
- Candida Overgrowth
- Chronic diarrhea
- Gut Health Issues
- Lactose intolerance
- Swallowing difficulties
General nutrition
Hormonal & Women's Health
Liver health
Neurological
Pediatric Health
Surgical Recovery
Women's health
Most searched conditions
Allergies & Immune
Bone Health
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
General Nutrition
Heart & Circulation
Immune & Allergy
Joint & Metabolic Health
Kidney Health
Kidney health
Liver & Metabolic Health
Mental & Behavioral Health
Metabolic health
Metabolic Health
Nutritional Deficiencies
Oncology
Pregnancy & Women's Health
Sports & Fitness
Procedures & services
Behavioral Counseling
Behavioral nutrition
Clinical Nutrition
- Acid Reflux Diet Protocol
- Heart-Healthy DASH Diet Coaching
- IV Nutrition Support
- Oncology Nutrition Consultation
- Tube Feeding Management
- Kidney Disease Diet Planning
- Senior Nutrition Assessment
Coaching & Education
Consultations
Diet protocols
Diet Protocols
- Anti-Inflammatory Diet 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
- Autoimmune Protocol Coaching
Heart health
Hormonal & Women's Health
Lifestyle Coaching
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 Services
- Baby-Led Weaning Consultation
- Formula and Breastmilk Fortification Guidance
- Pediatric Picky Eating Therapy
Sports & Fitness
Surgical Consultations
Testing & Assessment
- Body Composition Analysis
- Diet Diary Analysis
- Dietary Supplement Review
- DNA Diet and Nutrigenomics Testing
- Gut Microbiome Stool Test Review
- Nutrient Deficiency Testing and Review
- Continuous Glucose Monitor Coaching
- Food Sensitivity Testing
- Resting Metabolic Rate Test
Weight & Lifestyle
Women's health
Most searched procedures
Procedures Most Often Billed to Medicare
77 services · 15 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Therapy procedure for nutrition management, each 15 minutes | Treatment | 97802 |
77 | As often as other 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 3
Same specialty, same street address — most likely the same department or group.
Also at this address 3
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 Boston 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Therapy procedure for nutrition management, each 15 minutes 8
Providers in MA who bill this service to Medicare most often.
Common questions
What does Mallory Sin, LDN specialize in?
Mallory Sin, LDN is a registered dietitian / nutritionist in Boston, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mallory Sin, LDN located?
Mallory Sin, LDN is listed at One Joslin Place, Boston, MA 02215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mallory Sin, LDN's phone number?
The number on file is (917) 825-0376. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mallory Sin, LDN's NPI number?
Mallory Sin, LDN's National Provider Identifier is 1821426826. 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
Where did Mallory Sin, LDN train?
Mallory Sin, LDN attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How long has Mallory Sin, LDN been practicing?
Mallory Sin, LDN has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does Mallory Sin, LDN do most often?
According to Medicare billing data, Mallory Sin, LDN 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 Mallory Sin, LDN confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mallory Sin, LDN. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.