Are you Marc D. Knudsen, D.O.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 3300 Nw Expressway, Oklahoma City, OK 73112
About Dr. Knudsen
Marc D. Knudsen, D.O. practices emergency medicine in Oklahoma City, OK. Medicare claims data shows Marc provided 193 services to 193 patients. The services billed most often include telephone medical discussion with physician, 21-30 minutes, telephone medical discussion with physician, 5-10 minutes, and telephone medical discussion with physician, 11-20 minutes. The provider's National Provider Identifier (NPI) is 1235125683.
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
- (405) 951-2541
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
3300 NW EXPRESSWAY
Oklahoma City, OK 73112
Conditions Commonly Evaluated or Treated
Within Emergency 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
Bites & Stings
Brain & Nerves
- Delirium
- Stroke
- Fainting and syncope
- Seizure in Child
- Severe headache or sudden migraine
- Status epilepticus
- Transient ischemic attack
Endocrine & Metabolic
Eye Care
Injuries & Trauma
- Animal or dog bite
- Bone fractures
- Deep cut or wound
- Dislocated joint
- Severe burn
- Sprains and muscle strains
- Traumatic brain injury
Rashes & allergy
Skin & Infections
Urinary & Bladder
Women's Health
Abdomen & Digestion
Allergy & Immune
Allergy & Immunology
Blood & Circulation
Breathing
Digestion & Stomach
Ear, Nose & Throat
Environmental
Eye Emergency
General Emergency
Heart & Chest
Heart & Circulation
Heart & Lungs
Infections & Illness
Lungs & Breathing
Men's Health
Poisoning & Environmental
Poisoning & Toxins
Spine & Back
Urinary & Kidney
Procedures & services
Abdominal Procedures
Breathing & Airway
Critical Care
Diagnostic testing
Diagnostics
Ear, Nose & Throat
Eye & ENT
Heart & Diagnostics
Imaging & Diagnostics
Injections & Vaccines
Kidney Care
Lung & Respiratory
Medications
Mental Health
Minor Procedures
- Nasal cautery for nosebleeds
- Tick Removal
- Urinary catheter insertion
- Fishhook or embedded splinter removal
- Incision and drainage of an abscess
Minor Trauma
Orthopedics
Poisoning & Toxicology
Specialized Care
Stroke & Vascular
Toxicology
Women's Health
Wound Care
- Burn dressing and care
- Skin glue for cuts
- Stitches and Laceration Repair
- Wound cleaning and debridement
- Wound stapling
Airway & Breathing
Anesthesia & Sedation
Digestive Care
Eye Care
Heart Care
Orthopedic Procedures
Supportive Care
Procedures Most Often Billed to Medicare
193 services · 193 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
119 | More often than most peers in Emergency Medicine |
| Telephone medical discussion with physician, 5-10 minutes | Office visit | 99441 |
48 | More often than most peers in Emergency Medicine |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
26 | As often as other peers in Emergency 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 emergency physicians at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 8 related providers in 1 group
Common questions
What is Marc D. Knudsen's specialty?
Marc D. Knudsen is an emergency physician in Oklahoma City, OK. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
Where can I find Marc D. Knudsen?
Marc D. Knudsen is listed at 3300 Nw Expressway, Oklahoma City, OK 73112. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Marc D. Knudsen?
The number on file is (405) 951-2541. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Marc D. Knudsen?
Marc D. Knudsen's National Provider Identifier is 1235125683. 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 much experience does Marc D. Knudsen have?
Marc D. Knudsen has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Marc D. Knudsen known for?
According to Medicare billing data, Marc D. Knudsen the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Marc D. Knudsen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marc D. Knudsen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.