Mark Schellhammer, D.O.
NPI 1568567766 · Specialist · Ocoee, FL
Mark Schellhammer, D.O. is a Specialist provider in Ocoee, FL (NPI 1568567766).
Provider details
- NPI number
- 1568567766
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OS0006516 (FL)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Progesterone, Micronizedbrand: Progesterone | 21 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 18 |
| Testosterone Cypionate | 13 |
| Prednisone | 12 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-13
- Last updated
- 2012-12-31
Frequently asked questions
- What is Mark Schellhammer's NPI number?
- Mark Schellhammer's National Provider Identifier (NPI) is 1568567766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Schellhammer's specialty?
- Mark Schellhammer is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mark Schellhammer located?
- Mark Schellhammer's practice location on file with NPPES is 1555 Boren Dr, Ocoee, FL 34761-2989.
- What is Mark Schellhammer's phone number?
- The practice phone number listed in the NPPES registry for Mark Schellhammer is (407) 292-2156.
- Is Mark Schellhammer's NPI active?
- Yes — Mark Schellhammer's NPI (1568567766) is active in the NPPES registry as of the last update on 2012-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.