Gillian Althea Jacob, M.D.
Obstetrics & Gynecology Physician · Leesburg, VA
Gillian Althea Jacob, M.D. is an obstetrics & gynecology physician with a practice address in Leesburg, Virginia, and NPI 1285617498, issued on Nov 22, 2005. Check the license (Virginia 0101238135, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Gillian Althea Jacob
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 0101238135 VA
Self-reported in NPPES; status is on the state search - Practice location
- 161 Fort Evans RD NE, Leesburg, VA 20176
- Phone
- (703) 777-5111
- Enumerated
- Nov 22, 2005
- Record last updated
- Oct 30, 2023
- Fax
- (703) 777-8465
- Medicare enrollment
- Enrolled (PECOS I20140225000630); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,174 in Virginia → Look up another NPI →
Also registered at 161 Fort Evans RD NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jane Allen, MDObstetrics & Gynecology Physician1225083843
- Mohammad Aman, D.M.D.General Practice Dentistry1649400862
- Cathleen Mills, MDObstetrics & Gynecology Physician1922000660
- Chirag Sanghvi, M.D., MPHPain Medicine (Anesthesiology) Physician1255509576
Verify Gillian Althea Jacob in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101238135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
45 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 52.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $195.22
10 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Capital Womens Care LLCLeesburg, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gillian Althea Jacob among 1,174 obstetrics & gynecology physician records in Virginia
Gillian Althea Jacob, M.D. is one of 1,174 obstetrics & gynecology physician records with a practice address in Virginia. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2001 · median 2005 among the 701 with a school on file
- Record last updated2023 · 51% 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 Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 obstetrics & gynecology physician records list a practice address in Leesburg
They are 26 of the 1,759 NPPES records with a practice address in Leesburg, and 1,174 obstetrics & gynecology physician records in Virginia.
All 1,174 in Virginia → Every provider in Leesburg → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jane Allen, MDLeesburg, VA 201761225083843
- Anne Brown, MDLeesburg, VA 201761851331813
- Arshed Choudhry, MDLeesburg, VA 201761144286048
- Roopa Duggal, MDLeesburg, VA 201761194708420
- Gavin Foster, MDLeesburg, VA 201761609860915
- Younghae Hyun-Park, MDLeesburg, VA 201761134178965
- Cathleen Mills, MDLeesburg, VA 201761922000660
- Michelle Roberts-Borden, MDLeesburg, VA 201761700836798
Common questions
What is Gillian Althea Jacob, M.D.'s NPI number?
Gillian Althea Jacob, M.D.'s National Provider Identifier (NPI) is 1285617498, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gillian Althea Jacob, M.D. located?
The NPPES record lists a practice address at 161 Fort Evans RD NE, Leesburg, VA, 20176. Phone: (703) 777-5111. Providers update this record themselves, so call before visiting.
How can I verify Gillian Althea Jacob, M.D.'s license?
NPPES lists Virginia license number 0101238135, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gillian Althea Jacob, M.D. prescribe under Medicare Part D?
In 2024, Gillian Althea Jacob, M.D. had 45 Medicare Part D claims for 22 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Gillian Althea Jacob, M.D.'s MIPS final score?
The 2023 MIPS final score is 52.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.