NPPES file of Aug 9, 2026

Anastasios Tsiolakis, NP

Family Nurse Practitioner · Washington, DC

Anastasios Tsiolakis, NP is a family nurse practitioner with a practice address in Washington, District of Columbia, and NPI 1225430705, issued on Sep 16, 2014. Check the license (District of Columbia RN1019114, as entered in NPPES) with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225430705
Name
Anastasios Tsiolakis
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
RN1019114 DC
R212274 MD
0024171867 VA
Self-reported in NPPES; status is on the state search
Practice location
6101 16TH St NW Apt 610, Washington, DC 20011
Phone
(512) 694-6061
Enumerated
Sep 16, 2014
Record last updated
Sep 16, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150113001174); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Anastasios Tsiolakis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
    Search for license RN1019114
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the District of Columbia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

16% fewer Medicare Part D claims than the average family nurse practitioner in 2024

1,098 Medicare Part D claims for 147 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Anastasios Tsiolakis1,098
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium76 claims
  2. Amlodipine Besylate72 claims
  3. Albuterol Sulfate Hfa58 claims
  4. Lisinopril55 claims
  5. Losartan Potassium46 claims
  6. Gabapentin33 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.

Bills Medicare through 2 group practices

  1. Capital Healthcare PCTowson, MD
  2. Comprehensive Primary Care And Associates LLCBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Anastasios Tsiolakis among 682 family nurse practitioner records in District of Columbia

Anastasios Tsiolakis, NP is one of 682 family nurse practitioner records with a practice address in District of Columbia. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 37% of them.

  • NPI issued2014 · 37% of these records are older, 59% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2013 · median 2019 among the 311 with a school on file
  • Record last updated2014 · 49% 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 District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

675 family nurse practitioner records list a practice address in Washington

They are 675 of the 45,857 NPPES records with a practice address in Washington, and 682 family nurse practitioner records in District of Columbia.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Oby Atta, CRNPWashington, DC 200111063695922
  2. Markyse Dorceus, FNPWashington, DC 200111417500349
  3. Hans Formum Enow, NPWashington, DC 200111548893027
  4. Cindy Jules, NPWashington, DC 200111780956193
  5. Emilia Onuoha, FNPWashington, DC 200111467150631
  6. Maya Tyagi, NPWashington, DC 200111225691389
  7. Tina Abange, CRNPWashington, DC 200121700134780
  8. Karla Alvarado Granados, DNP, MSN, FNP-BC, RNWashington, DC 200101588532303

Common questions

What is Anastasios Tsiolakis, NP's NPI number?

Anastasios Tsiolakis, NP's National Provider Identifier (NPI) is 1225430705, issued on Sep 16, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Anastasios Tsiolakis, NP located?

The NPPES record lists a practice address at 6101 16TH St NW Apt 610, Washington, DC, 20011. Phone: (512) 694-6061. Providers update this record themselves, so call before visiting.

How can I verify Anastasios Tsiolakis, NP's license?

NPPES lists District of Columbia license number RN1019114, as entered by the provider. Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.

How much does Anastasios Tsiolakis, NP prescribe under Medicare Part D?

In 2024, Anastasios Tsiolakis, NP had 1,098 Medicare Part D claims for 147 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.