Mark Schaaf, D.O.
NPI 1306932611 · Family Medicine Physician · Mount Morris, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Schaaf, D.O. is a Family Medicine Physician provider in Mount Morris, MI (NPI 1306932611).
Provider details
- NPI number
- 1306932611
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- MS013800 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
495 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 176 | $120 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 96 | $121 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 82 | $170 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 43 | $86 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 34 | $13 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 217 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,592 | 218 |
| Levothyroxine Sodium | 574 | 146 |
| Atorvastatin Calcium | 564 | 155 |
| Amlodipine Besylate | 559 | 152 |
| Lisinopril | 478 | 134 |
| Omeprazole | 444 | 124 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$626 across 31 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2010-05-28
Frequently asked questions
- What is Mark Schaaf's NPI number?
- Mark Schaaf's National Provider Identifier (NPI) is 1306932611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Schaaf's specialty?
- Mark Schaaf is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Schaaf located?
- Mark Schaaf's practice location on file with NPPES is 4485 E Mount Morris Rd, Mount Morris, MI 48458-8963.
- What is Mark Schaaf's phone number?
- The practice phone number listed in the NPPES registry for Mark Schaaf is (810) 640-1942.
- Does Mark Schaaf accept Medicare?
- Mark Schaaf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Schaaf's NPI active?
- Yes — Mark Schaaf's NPI (1306932611) is active in the NPPES registry as of the last update on 2010-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.