Quick answers
- Does Janet M. Johanna accept Medicare assignment?
- Yes. Medicare's clinician data says Janet M. Johanna 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 Janet M. Johanna see?
- In 2024, CMS data shows 212 Original Medicare patients and 217 services for Janet M. Johanna. This counts Original Medicare only and measures volume, not quality.
- What is Janet M. Johanna's NPI number?
- 1386645216. 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 Janet M. Johanna, 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 | 212 |
|---|---|
| Services billed to Medicare | 217 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Anesthesia for other procedure on upper abdomen (00790)21 services
- Anesthesia for other procedure on skin of arms, legs, and front body (00400)20 services
- Anesthesia for other procedure on lower abdomen (00840)18 services
- Anesthesia for other procedure on urinary system through urethra (00910)16 services
- Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope (00918)15 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 pressure70%
- Arthritis61%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)34%
- Anxiety33%
- Ischemic heart disease29%
Hospitals where Janet M. Johanna works
Medicare's Facility Affiliation Data lists Janet M. Johanna 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.
- Cape Cod HospitalHyannis, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220012
Practice locations
Addresses where Janet M. Johanna is enrolled with Medicare (CMS data updated October 2, 2026).
- 27 Park StHyannis, MA 02601 (508) 771‑1800
Group practices
Medicare enrollment lists Janet M. Johanna as a member of this group (CMS data updated October 2, 2026).
- Cape Cod Anesthesia Associates, Inc39 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Massachusetts →
Other nurse anesthetists in Hyannis
Clinicians with the same Medicare primary specialty in Hyannis, MA — not a recommendation.
Other clinicians in Cape Cod Anesthesia Associates, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| School | University Of Missouri, Columbia School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386645216 |
| 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