Renia Mae De Guzman, BSN, RN-BC
Renia Mae De Guzman, BSN, RN-BC is a Registered Nurse in Havre De Grace, MD, registered under NPI 1588534879. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1714 SCENIC MANOR DR, Havre De Grace, MD 21078. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| R192033 | MD | Registered Nurse primary |
| R192033 | MD | Infusion Therapy Registered Nurse |
| R192033 | MD | Wound Care Registered Nurse |
| R192033 | MD | Home Health Registered Nurse |
This provider holds licence R192033 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Registered Nurse covers
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span. NUCC Health Care Provider Taxonomy, code 163W00000X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 163W00000X | Registered Nurse | R192033 | MD | primary |
| 163WI0500X | Infusion Therapy Registered Nurse Infusion Therapy | R192033 | MD | |
| 163WW0000X | Wound Care Registered Nurse Wound Care | R192033 | MD | |
| 163WH0200X | Home Health Registered Nurse Home Health | R192033 | MD |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1588534879 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 11, 2025 |
| Last updated | Nov 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | BSN, RN-BC |
| Practice address |
1714 SCENIC MANOR DR Havre De Grace, MD 21078 (410) 205-9887 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 5 | 8 | 8 | 5 | 3 | 4 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 7 | 8 | 1 | 3 | 8 | 8 | 5 |
Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.