Prior Authorization in Internal Medicine: Volume, Breadth, and No Dedicated Staff

39 prior authorizations per physician per week — the highest cross-specialty average in medicine

Internal medicine’s prior-authorization problem is a problem of scope. No other specialty manages as wide a range of chronic adult conditions — and that breadth means prior authorization requirements attach to almost every drug class, imaging order, and specialist referral the internist generates.

The challenge isn’t mastering one drug class’s PA criteria. It’s running authorization across dozens simultaneously, without the infrastructure a high-volume specialty practice would build for a narrower scope.

The numbers in internal medicine

The AMA’s 2024 Prior Authorization Physician Survey is the benchmark cross-specialty dataset, and it is directly representative of internal medicine:

Penn LDI and AJMC analyses tracking Medicare Part D coverage found that GLP-1 prior authorization went from fewer than 5% of prescriptions to approximately 100% in under two years — hitting internal medicine at high volume, given its role in managing diabetes and obesity.

Why internal medicine is different

What it costs

The cost is 13 hours a week of physician and staff time spread across a high-volume, wide-scope authorization load. At roughly $10.81 per manually processed authorization (CAQH 2023), a single internist running 39 authorizations a week spends roughly $420 weekly in direct processing cost alone — before counting the clinical cost of delayed medications, deferred imaging, or specialist referrals that didn’t reach the specialist. The 82% treatment-abandonment signal in the AMA data means a meaningful share of patients who could receive care don’t, because the authorization process outlasts their willingness to wait.

How to cut the wait

Internal medicine’s PA problem isn’t solved by learning one drug class’s criteria better. It’s solved by infrastructure: automated assembly across all categories, so each drug class doesn’t require a separate manual effort per submission. Artificer Health:

  1. Assembles the packet for each drug class — GLP-1 documentation, specialty drug step-therapy histories, imaging clinical rationale, DME justification — from the patient chart, without requiring staff to know each payer’s format for each category.
  2. Matches it to the payer’s criteria so first-pass submissions go in complete, reducing the documentation-request loops that waste the most time.
  3. Tracks pending authorizations across the full panel so nothing lapses and no re-authorization requires a manual calendar reminder.

For an internal medicine practice, the payoff isn’t measured in one drug class — it’s 13 hours back per week, across every authorization the practice runs.

Sources: AMA 2024 Prior Authorization Physician Survey (n=1,000; sample representative of primary/internal medicine); Penn LDI / AJMC GLP-1 PA surge analyses (2024–2025); CAQH 2023 Index.

Frequently asked questions

Why does internal medicine have such a high prior authorization volume?

Internal medicine manages the full spectrum of adult chronic disease: diabetes, cardiovascular disease, rheumatologic conditions, respiratory disease, and more. That breadth means prior authorization requirements land across nearly every drug class and imaging category. The AMA's 2024 survey sample is heavily weighted toward primary and internal medicine, making the 39 PAs/week figure directly representative of internal medicine's load.

How did the GLP-1 PA surge affect internal medicine?

Internal medicine manages a large share of type 2 diabetes and weight management — both GLP-1 indications. When GLP-1 prior authorization went from under 5% to approximately 100% of Medicare prescriptions in under two years, internal medicine practices absorbed the volume increase without the PA infrastructure that high-volume specialty practices had built.

Can internal medicine prior authorization be automated?

Yes. The value in internal medicine is cross-drug-class infrastructure: automated packet assembly for GLP-1s, specialty drug step-therapy documentation, imaging justifications, and DME referrals — without requiring a dedicated PA team for each category. Artificer Health handles this end-to-end.

Stop losing clinical time to prior authorization

Artificer Health automates prior authorization end-to-end for internal medicine practices — first-pass approvals in minutes, not days.

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