Carolyn Joan Harrington, MD
Obstetrics & Gynecology Physician · North Potomac, MD
Carolyn Joan Harrington, MD is an obstetrics & gynecology physician with a practice address in North Potomac, Maryland, and NPI 1730116708, issued on Jun 27, 2006. Check the license (Maryland D0034163, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Carolyn Joan Harrington
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- D0034163 MD
Self-reported in NPPES; status is on the state search - Practice location
- 11908 Darnestown RD, North Potomac, MD 20878
- Phone
- (301) 208-8600
- Enumerated
- Jun 27, 2006
- Record last updated
- Feb 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (301) 208-0547
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,034 in Maryland → Look up another NPI →
Also registered at 11908 Darnestown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gail Davis, D.D.S., M.S.Endodontics1700864840
- Lili Leon, D.D.S.Periodontics1740352889
- Wei Li, DMDDentist1427280213
- Robert Price, LCPC, LPC, NCCProfessional Counselor1437452497
- Courtney Stone, CRNP - PEDIATRICSPediatric Nurse Practitioner1477912970
Verify Carolyn Joan Harrington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0034163Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
23 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Carolyn Joan Harrington among 1,034 obstetrics & gynecology physician records in Maryland
Carolyn Joan Harrington, MD is one of 1,034 obstetrics & gynecology physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2012 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Maryland
There are 1,034 obstetrics & gynecology physician records in Maryland.
All 1,034 in Maryland → Every provider in North Potomac → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Shabnam Dadgar, M.D.Gaithersburg, MD 208781265671465
- Andre Hall, MDGaithersburg, MD 208781144858689
- Anders Apgar, MDGaithersburg, MD 208771831170638
- Janet Fried, MDGaithersburg, MD 208771932275120
- Stacey Garrett, MDGaithersburg, MD 208791063573533
- Niloofar Ghassemzadeh, M.D.Gaithersburg, MD 208791578887238
- Amir Gohari, M.D.Gaithersburg, MD 208771386870152
- Sujithra Jayaraj-Sudarsan, M.D.Gaithersburg, MD 208771487831681
Common questions
What is Carolyn Joan Harrington, MD's NPI number?
Carolyn Joan Harrington, MD's National Provider Identifier (NPI) is 1730116708, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carolyn Joan Harrington, MD located?
The NPPES record lists a practice address at 11908 Darnestown RD, North Potomac, MD, 20878. Phone: (301) 208-8600. Providers update this record themselves, so call before visiting.
How can I verify Carolyn Joan Harrington, MD's license?
NPPES lists Maryland license number D0034163, 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 Carolyn Joan Harrington, MD prescribe under Medicare Part D?
In 2024, Carolyn Joan Harrington, MD had 23 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.