Quick answers
- Does Carolyn M. Jachna accept Medicare assignment?
- Yes. Medicare's clinician data says Carolyn M. Jachna accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Carolyn M. Jachna see?
- In 2024, CMS data shows 864 Original Medicare patients and 36,829 services for Carolyn M. Jachna. This counts Original Medicare only and measures volume, not quality.
- What is Carolyn M. Jachna's NPI number?
- 1558378216. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Carolyn M. Jachna, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 864 |
|---|---|
| Services billed to Medicare | 36,829 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)14,700 services
- Injection, romosozumab-aqqg, 1 mg (J3111)10,500 services
- Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg (J1561)1,390 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)510 services
- Dxa bone density measurement of hip, pelvis, spine (77080)355 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Osteoporosis73%
- High cholesterol70%
- High blood pressure59%
- Arthritis55%
- Anxiety26%
- Depression24%
Hospitals where Carolyn M. Jachna works
Medicare's Facility Affiliation Data lists Carolyn M. Jachna at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
- Barnes-Jewish West County HospitalCreve Coeur, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260162
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260108
- Progress West HospitalOfallon, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260219
- St Lukes HospitalChesterfield, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260179
Practice locations
Addresses where Carolyn M. Jachna is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.
- 1 Barnes Jew Hosp PlzSaint Louis, MO 63110 (314) 747‑3000
- 10 Barnes W DrSaint Louis, MO 63141
- 10 Barnes W Dr, 200 Asthma and Allergy Center Wash UnivSt Louis, MO 63141 (314) 996‑8670
- 1110 Highlands Plaza Dr ESaint Louis, MO 63110 (314) 273‑0195
- 12788 Olive BlvdCreve Coeur, MO 63141
Group practices
Medicare enrollment lists Carolyn M. Jachna as a member of these groups (CMS data updated October 2, 2026).
- Washington University3,029 clinicians in the group
- Physician Groups LC521 clinicians in the group
- Elite Physical Therapy of Creve Coeur LLC91 clinicians in the group
Specialties
- Internal Medicineprimary
- Endocrinologyalso
Other internal medicine doctors in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in Washington University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558378216 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians