99214 — Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
2,047,791 observed fee-for-service (45%) · ~2,487,446 estimated Medicare Advantage. Scaled from the observed floor by each state’s fee-for-service share (FFS share as of 2024) — scaled estimate — assumes MA utilization mirrors FFS; not an observation. How we scale
- Market position — where this market sits on volume and growth among all state markets, and its rank.
- Worth a look — every state market for this search, ranked by a published score: size, growth, fragmentation, below-expected volume.
- Lookalike opportunities — groups billing below what peers of the same specialty, size, and state predict, with the expected figure shown.
- National benchmarks — where each group's volume sits nationally and within its specialty.
- Market structure — how concentrated this market is, and who owns the volume.
- Medicare-wide scaling — the exact payer split, and this market total scaled to all of Medicare, labeled as an estimate.
Nevvi's market analytics platform — code baskets, market structure and share, the twelve-year trend layer — is built and not launched yet. We're gathering interest in it.
Notify me at launch →Specialty market — Gastroenterology: 28,718 services across 31 groups; top group 20%. See Gastroenterology across all states →
| # | Physician group | City | Specialty | Providers | 99214 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share of specialty* | Share of state* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | DIGESTIVE HEALTHCARE OF GEORGIA | ATLANTA | GASTROENTEROLOGY | 34 | 5,856 | $1,600,693 | $273 | premium | 20.4% | 0.2% | 40460335431516 |
| 2 | AGA PROFESSIONAL SERVICES LLC | MARIETTA | GASTROENTEROLOGY | 178 | 5,707 | $2,210,262 | $387 | premium | 19.9% | 0.2% | (770) 427-3075 |
| 3 | GASTROINTESTINAL SPECIALIST OF GEORGIA | MARIETTA | GASTROENTEROLOGY | 35 | 2,704 | $784,160 | $290 | premium | 9.4% | 0.1% | (678) 741-5000 |
| 4 | GASTROENTEROLOGY CONSULTANTS OF AUGUSTA, PC | EVANS | GASTROENTEROLOGY | 26 | 1,991 | $328,515 | $165 | premium | 6.9% | 0.1% | (706) 854-8934 |
| 5 | SOUTHWELL AMBULATORY INC | VALDOSTA | GASTROENTEROLOGY | 11 | 1,344 | $221,760 | $165 | premium | 4.7% | 0.0% | (229) 262-6810 |
| 6 | GASTROINTESTINAL DISEASES INC | COLUMBUS | GASTROENTEROLOGY | 8 | 1,311 | $303,800 | $232 | premium | 4.6% | 0.0% | (706) 641-6900 |
| 7 | WEST GEORGIA GASTROENTEROLOGY ASSOCIATES,PC | CARROLLTON | GASTROENTEROLOGY | 12 | 1,204 | $224,468 | $186 | premium | 4.2% | 0.0% | 770214280013 |
| 8 | SOUTHERN GASTROENTEROLOGY ASSOCIATES, LLC | LAWRENCEVILLE | GASTROENTEROLOGY | 8 | 1,175 | $324,300 | $276 | premium | 4.1% | 0.0% | (678) 985-2000 |
| 9 | NEWCO GI LLC | CUMMING | GASTROENTEROLOGY | 7 | 1,133 | $512,116 | $452 | premium | 3.9% | 0.0% | (404) 440-0600 |
| 10 | GASTROENTEROLOGY PHYSICIAN SERVICES LLC | COLUMBUS | GASTROENTEROLOGY | 2 | 680 | $229,390 | $337 | premium | 2.4% | 0.0% | (706) 221-6116 |
| 11 | SOUTHERN GASTROENTEROLOGY SPECIALISTS, P.C | RIVERDALE | GASTROENTEROLOGY | 6 | 651 | $162,750 | $250 | premium | 2.3% | 0.0% | (770) 996-5959 |
| 12 | GASTROENTEROLOGY SPECIALISTS OF GWINNETT, P.C. | LAWRENCEVILLE | GASTROENTEROLOGY | 7 | 618 | $238,860 | $387 | premium | 2.2% | 0.0% | (770) 995-3113 |
| 13 | DIGESTIVE CARE CONSULTANTS LLC | ATLANTA | GASTROENTEROLOGY | 4 | 555 | $180,475 | $325 | premium | 1.9% | 0.0% | (404) 255-4333 |
| 14 | MARIA C CASTELLANO, MD, LLC | VALDOSTA | GASTROENTEROLOGY | 3 | 509 | $66,170 | $130 | premium | 1.8% | 0.0% | (229) 588-4688 |
| 15 | ATHENS GASTROENTEROLOGY ASSOCIATION | ATHENS | GASTROENTEROLOGY | 6 | 451 | $113,722 | $252 | premium | 1.6% | 0.0% | (706) 613-1625 |
| 16 | AGA, LLC | MARIETTA | GASTROENTEROLOGY | 125 | 415 | $161,978 | $390 | premium | 1.4% | 0.0% | (770) 427-3075 |
| 17 | AGA CLINICAL SERVICES, LLC | ATLANTA | GASTROENTEROLOGY | 33 | 414 | $129,996 | $314 | premium | 1.4% | 0.0% | (855) 841-1337 |
| 18 | ATHENS GASTROENTEROLOGY CENTER,PC | ATHENS | GASTROENTEROLOGY | 2 | 338 | $98,290 | $291 | premium | 1.2% | 0.0% | (706) 548-0058 |
| 19 | ATLANTA CENTER FOR GASTROENTEROLOGY, P.C. | DECATUR | GASTROENTEROLOGY | 2 | 250 | $87,500 | $350 | premium | 0.9% | 0.0% | 4042961986104 |
| 20 | GASTROENTEROLOGY SPECIALISTS OF DEKALB | DECATUR | GASTROENTEROLOGY | 2 | 212 | $74,200 | $350 | premium | 0.7% | 0.0% | 4042948180115 |
| 21 | ROME GASTROENTEROLOGY ASSOCIATES | ROME | GASTROENTEROLOGY | 7 | 203 | $41,412 | $204 | premium | 0.7% | 0.0% | (706) 295-3992 |
| 22 | TEXAS DIGESTIVE DISEASE CONSULTANTS, PLLC | DALLAS | GASTROENTEROLOGY | 613 | 191 | $41,447 | $217 | premium | 0.7% | 0.0% | — |
| 23 | GASTROENTEROLOGY CONSULTANTS,PC | ROSWELL | GASTROENTEROLOGY | 3 | 132 | $41,340 | $313 | premium | 0.5% | 0.0% | (770) 442-5424 |
| 24 | AUGUSTA GASTROINTESTINAL SPECIALISTS INC | AUGUSTA | GASTROENTEROLOGY | 2 | 127 | $17,145 | $135 | premium | 0.4% | 0.0% | — |
| 25 | JOHNS CREEK GASTROENTEROLOGY PC | CUMMING | GASTROENTEROLOGY | 2 | 122 | $33,360 | $273 | premium | 0.4% | 0.0% | (770) 889-9901 |
| 26 | SOUTHERN GASTROENTEROLOGYAND HEPATOLOGY CONSULTANTS INC | DOUGLAS | GASTROENTEROLOGY | 2 | 116 | $29,000 | $250 | premium | 0.4% | 0.0% | (912) 384-7275 |
| 27 | STOCKWELL REISMAN PAULK AND TAYLOR PA | TALLAHASSEE | GASTROENTEROLOGY | 15 | 93 | $19,902 | $214 | premium | 0.3% | 0.0% | (850) 877-2105 |
| 28 | DIGESTIVE DISEASE CARE, PC | RICHMOND HILL | GASTROENTEROLOGY | 37 | 93 | $35,346 | $380 | premium | 0.3% | 0.0% | (516) 750-8000 |
| 29 | CENTRAL GEORGIA GASTROENTEROLOGY, LLC | MACON | GASTROENTEROLOGY | 3 | 71 | $12,780 | $180 | premium | 0.2% | 0.0% | (478) 755-0800 |
| 30 | DIGESTIVE CONSULTANTS LLC | CHESTERFIELD | GASTROENTEROLOGY | 8 | 40 | $10,760 | $269 | premium | 0.1% | 0.0% | (636) 685-7795 |
| 31 | GI MEDICAL SPECIALISTS, PLLC | TALLAHASSEE | GASTROENTEROLOGY | 2 | 12 | $3,000 | $250 | premium | 0.0% | 0.0% | (850) 297-0351 |
*"Share of specialty" is the group's share of disclosed Medicare-FFS services for the primary code among groups with the SAME modal specialty in the state; "share of state" is the same figure against the whole state. Specialty is each group's modal member specialty from CMS's clinician register — a multi-specialty group carries one label. Where fewer than 11 groups share the specialty in the state, the specialty share renders "—" — the specialty benchmark is suppressed (fewer than 11 groups) and the state share alongside is the benchmark. Group figures sum clinicians affiliated with exactly one group. See Methods.
Comparing against an all-payer estimate?
These are exact counts from Medicare fee-for-service claims — roughly a third to half of most procedure markets, depending on payer mix. Modeled all-payer databases project the remainder statistically; we publish the audited floor and label it as such. Same market, different denominator. How the numbers reconcile →