Doctor profile · Federal record
Dr. Henry Zwally, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Glen Burnie, MD
- NPI 1669408936
- Accepts Medicare
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
7116 Ritchie Hwy
Glen Burnie, MD 210612904
(443) 577-0277 - Additional location
-
8118 Good Luck Road
Lanham, MD 20706
(301) 552-8118 - Mailing address
-
20010 Century Blvd., Suite 200
Germantown, MD 20874
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- August 4, 2021
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Maryland #D0042684
- Medicaid
- MD #064940600
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669408936. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
510
Distinct HCPCS
10
Medicare allowed
$33,783
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 79 | 78 | $97 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 74 | 74 | $139 | |
71046 |
X-ray of chest, 2 views | 56 | 56 | $33 | |
87428 |
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza | 43 | 43 | $61 | |
36415 |
Insertion of needle into vein for collection of blood sample | 34 | 34 | $8 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 33 | 33 | $7 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 33 | 33 | $179 | |
80047 |
Blood test, basic group of blood chemicals (calcium, ionized) | 32 | 32 | $13 | |
81000 |
Manual urinalysis test with examination using microscope, non-automated | 27 | 27 | $4 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 25 | 25 | $123 |
In context: peer comparison
Among 6 peers in Glen Burnie Emergency Medicine Physician, average services per provider: 79. This provider delivers 6.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
90
Patients
90
Total drug cost
$954
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Doxycycline Hyclate | Generic | 27 | 27 | $410 |
| Prednisone | Generic | 21 | 21 | $109 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 18 | 18 | $191 |
| Methylprednisolone | Generic | 12 | 12 | $122 |
| Paxlovid (Eua) (Nirmatrelvir/Ritonavir) | Brand | 12 | 12 | $121 |
Frequently asked questions
What is Dr. Henry Zwally's medical specialty?
Dr. Henry Zwally practices Emergency Medicine Physician in Glen Burnie, MD.
Where does Dr. Henry Zwally practice?
Dr. Henry Zwally practices at 7116 Ritchie Hwy, Glen Burnie, MD 210612904. Office phone: 4435770277.
What is Dr. Henry Zwally's NPI?
Dr. Henry Zwally's National Provider Identifier (NPI) is 1669408936, issued by NPPES.
Does Dr. Henry Zwally accept Medicare assignment?
Yes. Dr. Henry Zwally accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Henry Zwally commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.