Allopathic & Osteopathic Physicians / 207RB0002X
Individual · specialization · Medicare specialty 11
207RB0002X Obesity Medicine (Internal Medicine) Physician
207RB0002X is the taxonomy code for Obesity Medicine, a specialization of Internal Medicine, in the NUCC group “Allopathic & Osteopathic Physicians”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 11, Physician/Internal Medicine, under which 128,064 practitioners are enrolled.
- 1Taxonomy code 207RB0002X
- 2Level Specialization
- 3Medicare specialty 11 Physician/Internal Medicine
- 4Codes in this group 238
Definition
A physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 207RB0002X sits
- Group: Allopathic & Osteopathic Physicians — code 66 of 238 in the group
- Classification: Internal Medicine 207R00000X
- Specialization: Obesity Medicine 207RB0002X
Choose 207RB0002X over the general Internal Medicine code (207R00000X) when the provider's training or certification is specifically in obesity medicine; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 207RB0002X to Medicare specialty 11 (Physician/Internal Medicine). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 128,064 practitioners are enrolled under it nationally, and 25 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 207QB0505X Diabetology (Internal Medicine) Physician; 207R00000X Internal Medicine Physician; 207RA0000X Adolescent Medicine (Internal Medicine) Physician; 207RA0001X Advanced Heart Failure and Transplant Cardiology Physician; 207RA0201X Allergy & Immunology (Internal Medicine) Physician; 207RA0401X Addiction Medicine (Internal Medicine) Physician; 207RC0000X Cardiovascular Disease Physician; 207RC0200X Critical Care Medicine (Internal Medicine) Physician; and 17 more.
Related codes
| Code | Internal Medicine — other specializations |
|---|---|
| 207RM1200X | Magnetic Resonance Imaging (MRI) |
| 207RX0202X | Medical Oncology |
| 207RN0300X | Nephrology |
| 207RP1002X | Physician Nutrition Specialist |
| 207RP1001X | Pulmonary Disease |
| 207RR0500X | Rheumatology |
The nearest 6 of 30 other codes under Internal Medicine; all are on the group page.
History of 207RB0002X
207RB0002X was added to the code set in 2007, and has been revised 1 time since.
- 2007-10-01 — new
- 2015-07-01 — title and definition modified
Similar codes in other groups
If 207RB0002X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:
- 125Q00000X Oral Medicine Dentistry (Dental Providers)
- 133VN1201X Obesity and Weight Management Nutrition Registered Dietitian (Dietary & Nutritional Service Providers)
- 163WC0200X Critical Care Medicine Registered Nurse (Nursing Service Providers)
- 173000000X Legal Medicine (Other Service Providers)
- 1835E0208X Emergency Medicine Pharmacist (Pharmacy Service Providers)
- 364SC0200X Critical Care Medicine Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers)
Find providers with 207RB0002X
Using 207RB0002X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.