Are you Dr. Zwally? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileWhere to find Henry J. Zwally, MD
- Glen Burnie location main office
7116 Ritchie Hwy, Glen Burnie, MD 21061 - Lanham location
8118 Good Luck Road, Lanham, MD 20706
About Dr. Zwally
Based in Glen Burnie, MD, Henry J. Zwally, MD is listed in the NPI registry under emergency medicine. Henry graduated from University of Maryland School of Medicine in 1990. According to Medicare claims data, Henry cared for 388 Medicare patients across 402 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and x-ray of chest, 2 views. NPI 1669408936 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
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
- (443) 577-0277
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
7116 RITCHIE HWY
Glen Burnie, MD 21061
8118 Good Luck Road
Lanham, MD 20706
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
- Central line placement
- Chest tube insertion
- CPR and defibrillation
- Blood transfusion
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
402 services · 388 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
37 | As often as other peers in Emergency Medicine |
| X-ray of chest, 2 views | Imaging | 71046 |
37 | More often than most peers in Emergency Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
19 | As often as other peers in Emergency Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
60 | As often as other peers in Emergency Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
51 | As often as other peers in Emergency Medicine |
| Blood test, basic group of blood chemicals (calcium, ionized) | Lab test | 80047 |
34 | As often as other peers in Emergency Medicine |
| Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza | Lab test | 87428 |
31 | Less often than most peers in Emergency Medicine |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
28 | As often as other peers in Emergency Medicine |
| Manual urinalysis test with examination using microscope, non-automated | Lab test | 81000 |
25 | Less often than most peers in Emergency Medicine |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
24 | 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.
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.
Other emergency physicians in Glen Burnie 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Maryland School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at University of Maryland School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in MD who bill this service to Medicare most often.
Common questions
What does Dr. Zwally specialize in?
Dr. Zwally is an emergency physician in Glen Burnie, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
Where is Dr. Zwally located?
Dr. Zwally is listed at 7116 Ritchie Hwy, Glen Burnie, MD 21061. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Zwally's phone number?
The number on file is (443) 577-0277. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Zwally's NPI number?
Dr. Zwally's National Provider Identifier is 1669408936. 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
Where did Dr. Zwally go to medical school?
Dr. Zwally attended University of Maryland School of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Zwally been practicing?
Dr. Zwally has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Zwally do most often?
According to Medicare billing data, Dr. Zwally performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as x-ray of chest, 2 views; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Zwally confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Zwally. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.