Donald Simmler, M.D.
NPI 1063435535 · Hospice and Palliative Medicine (Internal Medicine) Physician · St Petersburg, FL
Enrolled with Medicare as Practitioner - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Simmler, M.D. is a Hospice and Palliative Medicine (Internal Medicine) Physician provider in St Petersburg, FL (NPI 1063435535).
Provider details
- NPI number
- 1063435535
- Entity type
- Individual
- Primary specialty
- Hospice and Palliative Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME 33698 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
413 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 156 | $49 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 134 | $169 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 74 | $116 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 35 | $77 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $128 |
Typical Medicare-allowed amounts for these services range $49–$169 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2022-04-18
- Certified
- 2022-04-18
Frequently asked questions
- What is Donald Simmler's NPI number?
- Donald Simmler's National Provider Identifier (NPI) is 1063435535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Simmler's specialty?
- Donald Simmler is listed in the NPPES registry with a primary specialty of Hospice and Palliative Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Simmler located?
- Donald Simmler's practice location on file with NPPES is 1200 7th Ave N, St Petersburg, FL 33705-1300.
- What is Donald Simmler's phone number?
- The practice phone number listed in the NPPES registry for Donald Simmler is (727) 820-7737.
- Does Donald Simmler accept Medicare?
- Donald Simmler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Simmler's NPI active?
- Yes — Donald Simmler's NPI (1063435535) is active in the NPPES registry as of the last update on 2022-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.