Quick answers
- Does Jeffrey P. Tillinghast Sr. accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey P. Tillinghast Sr. 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 Jeffrey P. Tillinghast Sr. see?
- In 2024, CMS data shows 479 Original Medicare patients and 4,246 services for Jeffrey P. Tillinghast Sr.. This counts Original Medicare only and measures volume, not quality.
- What is Jeffrey P. Tillinghast Sr.'s NPI number?
- 1447393301. 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 Jeffrey P. Tillinghast Sr., 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 | 479 |
|---|---|
| Services billed to Medicare | 4,246 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Professional service for preparation and provision of 1 or more antigens (95165)1,209 services
- Professional service for multiple injections of allergen (95117)624 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)269 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)261 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)131 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).
- High cholesterol75%
- High blood pressure74%
- Arthritis50%
- Asthma37%
- Osteoporosis23%
- Anxiety21%
Hospitals where Jeffrey P. Tillinghast Sr. works
Medicare's Facility Affiliation Data lists Jeffrey P. Tillinghast Sr. 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 St Peters HospitalSaint Peters, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260191
- Barnes-Jewish West County HospitalCreve Coeur, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260162
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260020
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260108
Practice locations
Addresses where Jeffrey P. Tillinghast Sr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 9594 Manchester RdSaint Louis, MO 63119 (314) 274‑6314
- 969 N Mason Rd, Suite 240Saint Louis, MO 63141 (314) 542‑0606
Group practices
Medicare enrollment lists Jeffrey P. Tillinghast Sr. as a member of these groups (CMS data updated October 2, 2026).
- Arnold Physical Therapy and Sports Medicine LLC83 clinicians in the group
- Associated Specialists in Medicine, PC3 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in Arnold Physical Therapy and Sports Medicine LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447393301 |
| 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