Vivian V. Tan, NP-C
Family Nurse Practitioner · Elkridge, MD
Vivian V. Tan, NP-C is a family nurse practitioner with a practice address in Elkridge, Maryland, and NPI 1649787011, issued on Jan 5, 2018. Check the license (Maryland R164835, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Vivian V. Tan
- Credential
- NP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- R164835 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6480 Old Waterloo RD, Elkridge, MD 21075
- Phone
- (410) 799-0291
- Enumerated
- Jan 5, 2018
- Record last updated
- Apr 14, 2023
- Medicare enrollment
- Enrolled (PECOS I20230420000458); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,124 in Maryland → Look up another NPI →
Also registered at 6480 Old Waterloo RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Elise BogardPharmacist1376952192
- Simonne BoswellFamily Nurse Practitioner1962232199
- Mary CascianoPharmacist1104234624
- Oluwatosin DairoPharmacist1457152969
Verify Vivian V. Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R164835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average family nurse practitioner in 2024
770 Medicare Part D claims for 44 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Amlodipine Besylate50 claims
- Trazodone Hcl40 claims
- Tamsulosin Hcl39 claims
- Atorvastatin Calcium29 claims
- Gabapentin28 claims
- Lisinopril26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $87.09
3 payments; by number, the most common kind was food and beverage; the largest payer was Solventum Corporation. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Synergy Medical Group LLCBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vivian V. Tan among 4,124 family nurse practitioner records in Maryland
Vivian V. Tan, NP-C is one of 4,124 family nurse practitioner records with a practice address in Maryland. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 43% of them.
- NPI issued2018 · 43% of these records are older, 50% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2017 · median 2019 among the 2,370 with a school on file
- Record last updated2023 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
53 family nurse practitioner records list a practice address in Elkridge
They are 53 of the 468 NPPES records with a practice address in Elkridge, and 4,124 family nurse practitioner records in Maryland.
All 4,124 in Maryland → Every provider in Elkridge → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Anna Bonney, CRNP-FElkridge, MD 210751467699561
- Sharon Brooks, FNPElkridge, MD 210751679626295
- Joan Carpenter, MN, RN, NP-CElkridge, MD 210751902953086
- Stefanie Defiglia, CRNPElkridge, MD 210751083779920
- Melissa Deitzel, CRNPElkridge, MD 210751346390127
- Olusola Ewebiyi, APRNElkridge, MD 210751811071608
- Charia Friend, C.R.N.P.Elkridge, MD 210751720139587
- Perpetual Guwani, CRNPElkridge, MD 210751588853436
Common questions
What is Vivian V. Tan, NP-C's NPI number?
Vivian V. Tan, NP-C's National Provider Identifier (NPI) is 1649787011, issued on Jan 5, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Vivian V. Tan, NP-C located?
The NPPES record lists a practice address at 6480 Old Waterloo RD, Elkridge, MD, 21075. Phone: (410) 799-0291. Providers update this record themselves, so call before visiting.
How can I verify Vivian V. Tan, NP-C's license?
NPPES lists Maryland license number R164835, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Vivian V. Tan, NP-C prescribe under Medicare Part D?
In 2024, Vivian V. Tan, NP-C had 770 Medicare Part D claims for 44 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.