Are you Marc O. Merbaum, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 5034 Griffin Rd, Saint Louis, MO 63128
About Dr. Merbaum
Marc O. Merbaum, M.D. is a healthcare provider in Saint Louis, MO specializing in internal medicine. According to Medicare claims data, Marc cared for 1,896 Medicare patients across 2,594 services. The services billed most often include insertion of needle into vein for collection of blood sample, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and blood test, comprehensive group of blood chemicals. This provider record is associated with NPI 1245204338.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (314) 843-7333
- Email not available
Practice Locations
5034 GRIFFIN RD
Saint Louis, MO 63128
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
Procedures Most Often Billed to Medicare
2,594 services · 1,896 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
440 | More often than most peers in Internal Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
60 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
328 | More often than most peers in Internal Medicine |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
239 | As often as other peers in Internal Medicine |
| Complete blood cell count (red cells, white blood cell, platelets), automated test | Lab test | 85027 |
163 | More often than most peers in Internal Medicine |
| Ldl cholesterol level | Lab test | 83721 |
139 | As often as other peers in Internal Medicine |
| Hemoglobin a1c level | Lab test | 83036 |
139 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
117 | More often than most peers in Internal Medicine |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
111 | More often than most peers in Internal Medicine |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
107 | As often as other peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Other internists in Saint Louis 8
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in MO who bill this service to Medicare most often.
Common questions
What kind of doctor is Marc O. Merbaum?
Marc O. Merbaum is an internist in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Marc O. Merbaum's address?
Marc O. Merbaum is listed at 5034 Griffin Rd, Saint Louis, MO 63128. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Marc O. Merbaum?
The number on file is (314) 843-7333. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Marc O. Merbaum's NPI number?
Marc O. Merbaum's National Provider Identifier is 1245204338. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Marc O. Merbaum been practicing?
Marc O. Merbaum has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Marc O. Merbaum perform?
According to Medicare billing data, Marc O. Merbaum performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Marc O. Merbaum confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Marc O. Merbaum. If this is you, claiming it is free.
Guide.md
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