Physician Profile
Unclaimed ProfileAbout ROYSTER
Based in Hagerstown, MD, William E Royster, M.D. is listed in the NPI registry under family practice. William graduated from Rutgers New Jersey Medical School in 1986. William is also listed as specialising in family medicine. Medicare claims data shows William provided 2,360 services to 1,839 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Royster?
Dr. Royster is a family practice in Hagerstown, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
What is Dr. Royster's address?
Dr. Royster is listed at 11110 MEDICAL CAMPUS RD STE 200, Hagerstown, MD 21742. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Royster?
The number on file is (301) 714-4400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Royster?
Dr. Royster's National Provider Identifier is 1598798621. 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. Royster train?
Dr. Royster attended Rutgers New Jersey Medical School, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Royster have?
Dr. Royster has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Royster perform?
According to Medicare billing data, Dr. Royster provides treatments such as influenza vaccine split virus, preservative free and sarscv2 vac 30mcg trs-suc im, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Royster's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Royster. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (301) 714-4400
- Email not available
Practice Locations
11110 MEDICAL CAMPUS RD STE 200
Hagerstown, MD 21742
Procedures Most Often Billed to Medicare
2,360 services · 1,839 patients · 19 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
121 |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
63 |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
63 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
39 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
36 |
| Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage | Treatment | 90656 |
19 |
| Administration of vaccine | Treatment | 90471 |
11 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
604 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
427 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
406 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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 family practices in Hagerstown 8
Same specialty, same city.
Trained at Rutgers New Jersey Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1986 at Rutgers New Jersey Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Influenza vaccine split virus, preservative free 8
Providers in MD who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.