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A close reading of the seven-part petition asking CMS to recognise a physician nutrition specialty, the single edit that changed what it was asking for, and the comment period that closes 14 September 2026.

Jason Fee, MS, RDN, LDN · 2026-08-04

Who Medicare will pay to deliver nutrition care, by condition. The dietitian is paid for medical nutrition therapy in three situations only: diabetes, non-dialysis chronic kidney disease, and the 36 months after a kidney transplant. A physician addressing nutrition in any condition bills an ordinary office visit instead, and those codes carry no diagnosis restriction. The gap is not a difference in skill. It is a difference in which code family each profession is permitted to touch.
Figure 1. The dietitian is paid for medical nutrition therapy in three situations only: diabetes, non-dialysis chronic kidney disease, and the 36 months after a kidney transplant. A physician addressing nutrition in any condition bills an ordinary office visit instead, and those codes carry no diagnosis restriction. The gap is not a difference in skill. It is a difference in which code family each profession is permitted to touch.

Sources: 42 CFR 410.130-410.134 and NCD 180.1 (dietitian); CMS Physician Fee Schedule (office visits).

Show the underlying data
Underlying data
—Dietitian (medical nutrition therapy)Physician (office visit)
Diabetes11
Chronic kidney disease (non-dialysis)11
First 36 months after kidney transplant11
Cancer01
Alzheimer's disease01
Obesity01
Hospital malnutrition01
Perioperative nutrition01

Obesity is a common point of confusion. It is not a covered medical nutrition therapy diagnosis. Medicare covers it under a separate benefit, intensive behavioural therapy for obesity (NCD 210.12), which must be furnished by a primary care practitioner in a primary care setting, so a dietitian cannot bill that benefit independently either. The last five rows are conditions the PNS taxonomy descriptor and the CMS letter both name as territory of the specialty.

What the petition offered against each of Medicare's criteria. Length of the answer given to each consideration CMS requires for a new specialty code. The third consideration, which asks for evidence that the specialty's practice pattern is markedly different from its parent specialty, received the shortest answer in the document: 34 words, containing no data, no comparison and no citation. The question about training received five times as much.
Figure 2. Length of the answer given to each consideration CMS requires for a new specialty code. The third consideration, which asks for evidence that the specialty's practice pattern is markedly different from its parent specialty, received the shortest answer in the document: 34 words, containing no data, no comparison and no citation. The question about training received five times as much.

Source: ASN letter to CMS requesting a specialty code for Physician Nutrition Specialists, 19 August 2025.

Show the underlying data
Underlying data
CategoryValue
1. Can bill independently78
2. Purpose of the code105
3. Different practice pattern34
4. Training and certification171
5. Medicare volume79
6. Outside recognition69

Word counts measured from the letter text, excluding headings, footnotes and URLs. The seventh consideration is omitted because its answer is largely a table of taxonomy codes rather than prose.

Medicare caps the nutrition benefit. It does not cap the office visit.. Medicare covers three hours of medical nutrition therapy in a beneficiary's first year and two hours in every year after that, for three diagnoses, and only on a physician referral. The physician office visit that treats the same disease carries no annual ceiling, no diagnosis restriction and no referral requirement. The asymmetry is not in the hourly rate. It is in the fact that one side of this comparison has a ceiling at all.
Figure 3. Medicare covers three hours of medical nutrition therapy in a beneficiary's first year and two hours in every year after that, for three diagnoses, and only on a physician referral. The physician office visit that treats the same disease carries no annual ceiling, no diagnosis restriction and no referral requirement. The asymmetry is not in the hourly rate. It is in the fact that one side of this comparison has a ceiling at all.

Sources: 42 CFR 410.130-410.134 and NCD 180.1 (dietitian); CMS Physician Fee Schedule (office visits).

Show the underlying data
Underlying data
CategoryValue
Dietitian: first year3
Dietitian: each later year2
Physician: office visits (no annual cap)0

The physician bar is shown at zero because no annual hour ceiling exists for office visits, not because the coverage is zero. Dietitian hours are the statutory maximums at 42 CFR 410.130-134. For scale, a fifteen-minute unit of medical nutrition therapy paid the dietitian $18.36 in the 2026 hospital setting after the 85 percent non-physician reduction and the 2 percent sequestration, against $21.98 for an initial unit. National amounts; localities vary.

The organisations named as recognising the credential. The petition states the credential is recognised by "all of the major nutrition professional societies" and lists eight. Every one is a physician or medical society. No dietetics organisation appears on the list, in a document asking CMS to accept that medical nutrition therapy is among the services only this specialty provides.
Figure 4. The petition states the credential is recognised by "all of the major nutrition professional societies" and lists eight. Every one is a physician or medical society. No dietetics organisation appears on the list, in a document asking CMS to accept that medical nutrition therapy is among the services only this specialty provides.

Source: ASN letter to CMS requesting a specialty code for Physician Nutrition Specialists, 19 August 2025.

Show the underlying data
Underlying data
CategoryValue
Physician or medical societies8
Dietetics organisations0

Named: AACE, American College of Nutrition, AGA, ASN, ASPEN, NASPGHAN, The Obesity Society, and the Society of Critical Care Medicine.

References

  1. American Society for Nutrition. CMS Specialty Code Request for Physician Nutrition Specialists, letter to CMS, 19 August 2025. — source
  2. National Uniform Claim Committee. Health Care Provider Taxonomy Code Set (PNS codes 207LP4000X, 207QP0002X, 207RP1002X, 2080P1004X, 2086P0122X; effective 1 April 2025). — source
  3. CMS. CY 2027 Payment Policies Under the Physician Fee Schedule (CMS-1848-P), Federal Register, 16 July 2026. Comments close 14 September 2026. — source
  4. Regulations.gov. Docket CMS-2026-2377, document CMS-2026-2377-0002 — the comment form for this rule. Comments close 14 September 2026. — source
  5. 42 CFR 410.132, Medical nutrition therapy. — source
  6. 42 CFR 410.134, Provider qualifications for medical nutrition therapy. — source
  7. National Board of Physician Nutrition Specialists. — source
  8. CMS. CY 2027 PFS proposed rule fact sheet (includes the request for information on the CPT code set and payment valuation). — source
  9. American Medical Association. RUC Health Care Professionals Advisory Committee (HCPAC) Review Board — the 13 seated non-physician organizations. — source
  10. Uhl S, et al. Malnutrition in Hospitalized Adults: A Systematic Review. AHRQ Comparative Effectiveness Review No. 249, October 2021 (cited by the petition). — source

Download the PDF appendix — methods notes and the full reference list.

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