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Edit this profileAt a glance
- 75 Thomas Johnson Dr, Suite C, Frederick, MD 21702
About Elizabeth Van Dermark
Elizabeth A. Van Dermark, CRNP-A, WH is a nurse practitioner practicing in Frederick, MD. Elizabeth is also listed as specializing in nurse practitioner — adult health and nurse practitioner — women's health. According to Medicare claims data, Elizabeth cared for 985 Medicare patients across 3,404 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, testing for presence of drug, by chemistry analyzers, and drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/m. This provider record is associated with NPI 1497888226.
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
- (301) 620-0012
- Email not available
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Practice Locations
75 THOMAS JOHNSON DR SUITE C
Frederick, MD 21702
Procedures Most Often Billed to Medicare
3,404 services · 985 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
2,092 | More than most peers in Nurse Practitioner |
| Testing for presence of drug, by chemistry analyzers | Lab test | 80307 |
569 | More than most peers in Nurse Practitioner |
| Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/m | Billing code | G0481 |
406 | More than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
180 | More often than most peers in Nurse Practitioner |
| Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/m | Billing code | G0482 |
157 | More often than most peers in Nurse Practitioner |
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 nurse practitioners at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 24 related providers in 3 groups
Other nurse practitioners in Frederick 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Elizabeth A. Van Dermark, CRNP-A specialize in?
Elizabeth A. Van Dermark, CRNP-A is a nurse practitioner in Frederick, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Elizabeth A. Van Dermark, CRNP-A located?
Elizabeth A. Van Dermark, CRNP-A is listed at 75 Thomas Johnson Dr Suite C, Frederick, MD 21702. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Elizabeth A. Van Dermark, CRNP-A's phone number?
The number on file is (301) 620-0012. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Elizabeth A. Van Dermark, CRNP-A's NPI number?
Elizabeth A. Van Dermark, CRNP-A's National Provider Identifier is 1497888226. 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 Elizabeth A. Van Dermark, CRNP-A train?
Elizabeth A. Van Dermark, CRNP-A attended Other, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Elizabeth A. Van Dermark, CRNP-A been practicing?
Elizabeth A. Van Dermark, CRNP-A has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does Elizabeth A. Van Dermark, CRNP-A do most often?
According to Medicare billing data, Elizabeth A. Van Dermark, CRNP-A 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
Has Elizabeth A. Van Dermark, CRNP-A confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Elizabeth A. Van Dermark, CRNP-A. If this is you, claiming it is free.
Guide.md
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