Mark English, MD
NPI 1699706929 · Internal Medicine Physician · Port Sanilac, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark English, MD is a Internal Medicine Physician provider in Port Sanilac, MI (NPI 1699706929).
Provider details
- NPI number
- 1699706929
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301053627 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
561 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 | 150 | $122 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 116 | $61 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 80 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 71 | $127 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $86 |
| Administration and Interpretation of Patient-Focused Health Risk Assessment96160 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 268 | 75 |
| Lisinopril | 201 | 55 |
| Omeprazole | 188 | 51 |
| Metformin Hclbrand: Metformin Hcl Er | 130 | 31 |
| Amlodipine Besylate | 126 | 32 |
| Tamsulosin Hcl | 115 | 30 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$135 across 8 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
Additional practice locations (1)
- 109 N Delaware StSandusky, MI 48471-1008Phone: (810) 648-9677Fax: (810) 648-0053
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2022-02-24
- Certified
- 2022-02-24
Frequently asked questions
- What is Mark English's NPI number?
- Mark English's National Provider Identifier (NPI) is 1699706929, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark English's specialty?
- Mark English is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark English located?
- Mark English's practice location on file with NPPES is 7307 Cherry St, Port Sanilac, MI 48469-9621.
- What is Mark English's phone number?
- The practice phone number listed in the NPPES registry for Mark English is (810) 622-9248.
- Does Mark English accept Medicare?
- Mark English is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark English's NPI active?
- Yes — Mark English's NPI (1699706929) is active in the NPPES registry as of the last update on 2022-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.