William John Cirksena, M. D.
Nephrology Physician · Annapolis, MD
William John Cirksena, M. D. is a nephrology physician with a practice address in Annapolis, Maryland, and NPI 1700904000, issued on Mar 26, 2007. Check the license (Maryland D0001228, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- William John Cirksena
- Credential
- M. D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- D0001228 MD
MD-11413 HI
Self-reported in NPPES; status is on the state search - Practice location
- 813 Coachway, Annapolis, MD 21401
- Phone
- (410) 849-2411
- Enumerated
- Mar 26, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 849-2431
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 337 in Maryland → Look up another NPI →
Verify William John Cirksena in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0001228Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average nephrology physician in 2024
44 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
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.
William John Cirksena among 337 nephrology physician records in Maryland
William John Cirksena, M. D. is one of 337 nephrology physician records with a practice address in Maryland. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 37% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2007 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Maryland
There are 337 nephrology physician records in Maryland.
All 337 in Maryland → Every provider in Annapolis → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Harsha Adnani, MDAnnapolis, MD 214011437738838
- Andrew Briglia, DOAnnapolis, MD 214011063470235
- Kryt Chattrabhuti, M.D.Annapolis, MD 214011346683935
- Mayurkumar Gohel, M.D.Annapolis, MD 214011245593490
- Adnan Hashmi, MDAnnapolis, MD 214011649258443
- Zoya Fatima Rizwan Ladiwala, M.D.Annapolis, MD 214011487229589
- Kamyar Pournazari, MDAnnapolis, MD 214011528696861
- George Samaras, MDAnnapolis, MD 214011245217116
Common questions
What is William John Cirksena, M. D.'s NPI number?
William John Cirksena, M. D.'s National Provider Identifier (NPI) is 1700904000, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William John Cirksena, M. D. located?
The NPPES record lists a practice address at 813 Coachway, Annapolis, MD, 21401. Phone: (410) 849-2411. Providers update this record themselves, so call before visiting.
How can I verify William John Cirksena, M. D.'s license?
NPPES lists Maryland license number D0001228, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William John Cirksena, M. D. prescribe under Medicare Part D?
In 2024, William John Cirksena, M. D. had 44 Medicare Part D claims; the average among nephrology physician prescribers was 1,465. 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.