Dr. Bartholomew D. Sak
- Gender: Male
- Experience: 25 years
- Graduated from: University Of Iowa, Rj & L Carver College Of Medicine
- Graduation year: 1996
- Sole propriator: No
- NPI: 1093755167
Dr. Bartholomew D. Sak MD
Hospitalist
He is located at 1500 East Sherman Boulevard in Muskegon, MI 49444. Can help patients with the following: Acute Pain, Bladder Control, Cystitis, Diarrhea, Edema, Heart Disease. His National Provider Identifier (NPI) number is 1093755167. Appointment can be made via the phone number (231) 672-3883. He is affiliated with 2 practices and 5 hospitals.
Conditions treated
Dr. Bartholomew David Sak, being an hospitalist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Bartholomew D. Sak.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Bartholomew D. Sak
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Bartholomew D. Sak as in-network for the following 2026 plans.
Health plans
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 8 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic 4700 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Classic Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic Standard | EPO · Gold | Preferred | Accepting new patients |
| Gold Elite Saver Plus | EPO · Gold | Preferred | Accepting new patients |
| Silver Classic | EPO · Silver | Preferred | Accepting new patients |
| Silver Classic Standard | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | EPO · Silver | Preferred | Accepting new patients |
Priority Health
Network data as of Aug 26, 2026, as reported by the insurer.
Show all 9 plans from Priority Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| MyPriority Balanced Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Premier Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Standard Bronze | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Standard Bronze - Travel | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Standard Gold | HMO · Gold | Mypriority HMO | Accepting new patients |
| MyPriority Standard Silver | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Standard Silver - Travel | HMO · Silver | Mypriority HMO | Accepting new patients |
| MyPriority Value Bronze | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
| MyPriority Value Bronze HSA | HMO · Expanded Bronze | Mypriority HMO | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Bartholomew D. Sak is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Bartholomew D. Sak is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - Hospitalist) .
Bills through: Spectrum Health Primary Care Partners
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated in 1996Additional Specialities
- Internist
Affiliated hospitals
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- Gender: Female
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Female
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Female
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Male
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Male
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Male
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Female
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Female
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Male
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
- Gender: Female
- Address: 1500 East Sherman Boulevard Muskegon, 49444, MI
Questions & Answers
What conditions does Dr. Bartholomew David Sak treat?
Dr. Bartholomew David Sak provides treatment for Acute Pain, Bladder Control, Cystitis, Diarrhea, Edema, Heart Disease. For the full list see this list.
Does Dr. Bartholomew David Sak have affiliation with practices?
Dr. Bartholomew David Sak is affiliated with Michigan Medical Patient Care. For the full list of practices see this list.
Has Dr. Bartholomew David Sak affiliation with hospitals?
Dr. Bartholomew David Sak is affiliated with MERCY HEALTH HACKLEY CAMPUS. For the full list of hospitals see this list.
Does Dr. Bartholomew David Sak accept patients with Oscar Insurance Company?
Yes, Dr. Bartholomew David Sak is listed in-network for Oscar Insurance Company through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Bartholomew David Sak?
Dr. Bartholomew David Sak's office is located at 1500 East Sherman Boulevard in Muskegon, MI 49444.