Physician Profile
Unclaimed ProfileAbout SIMON
Listed in the NPI registry as a nurse practitioner, Guillana Simon, MSN FNP-BC, RN, CEN practices in California, MD. Guillana graduated from George Washington University School of Medicine in 2017. Guillana is also listed as specializing in nurse practitioner — family. According to Medicare claims data, Guillana cared for 586 Medicare patients across 957 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (301) 737-0500
- Email not available
Practice Locations
22590 SHADY CT
California, MD 20619
Procedures Most Often Billed to Medicare
957 services · 586 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| X-ray of chest, 2 views | Imaging | 71046 |
25 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
23 |
| Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | Office visit | 99350 |
319 |
| Prolonged home or residence evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or quali | Billing code | G0318 |
259 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
96 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
47 |
| Automated urinalysis test | Lab test | 81003 |
33 |
| Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus | Lab test | 87637 |
29 |
| Blood glucose (sugar) test performed by hand-held instrument | Lab test | 82962 |
25 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
23 |
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 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 25 related providers in 4 groups
Other nurse practitioners in California 4
Same specialty, same city.
Trained at George Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at George Washington University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 2 views 6
Providers in MD who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Simon?
Dr. Simon is a nurse practitioner in California, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NURSE PRACTITIONER”.
NPI registry
What is Dr. Simon's address?
Dr. Simon is listed at 22590 SHADY CT, California, MD 20619. 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. Simon?
The number on file is (301) 737-0500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Simon's NPI number?
Dr. Simon's National Provider Identifier is 1497270110. 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. Simon train?
Dr. Simon attended George Washington University School of Medicine, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Simon been practicing?
Dr. Simon has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Simon perform?
According to Medicare billing data, Dr. Simon performs imaging including 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. Simon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Simon. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.