Robert Paul Fields, M.D.
Internal Medicine Physician · Olney, MD
Robert Paul Fields, M.D. is an internal medicine physician with a practice address in Olney, Maryland, and NPI 1578563292, issued on Jul 22, 2005. Check the license (Maryland D0034740, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Robert Paul Fields
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0034740 MD
Self-reported in NPPES; status is on the state search - Practice location
- 18109 Prince Philip Dr, Olney, MD 20832
- Phone
- (301) 774-7115
- Enumerated
- Jul 22, 2005
- Record last updated
- Mar 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (301) 570-6662
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 18109 Prince Philip Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Terry Black, PTPhysical Therapist1821151655
- Laura Bothe, NPFamily Nurse Practitioner1396393955
- Christopher Brandt, ATC, PTAPhysical Therapy Assistant1306017629
- Mercedes Brito, PTAPhysical Therapy Assistant1083868798
- Samer Charbel, M.D.Gastroenterology Physician1144499468
- Shawn Chong, PA-CSurgical Physician Assistant1023461951
Verify Robert Paul Fields in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0034740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
17 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Robert Paul Fields among 3,904 internal medicine physician records in Maryland
Robert Paul Fields, M.D. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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, 91% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2010 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 internal medicine physician records list a practice address in Olney
They are 27 of the 742 NPPES records with a practice address in Olney, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Olney → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dawn Broderick, M.D.Olney, MD 208321801899489
- Philip Henjum, M.D.Olney, MD 208321295820215
- Daphna Henkin, MDOlney, MD 208321831160233
- John Herring, MDOlney, MD 208321710975040
- Emanuel Kokotakis, M.D.Olney, MD 208321255350278
- John Lodmell, M.D.Olney, MD 208321801899653
- Alok Mathur, MDOlney, MD 208321619035573
- Christopher Mays, M.D.Olney, MD 208321053306829
Common questions
What is Robert Paul Fields, M.D.'s NPI number?
Robert Paul Fields, M.D.'s National Provider Identifier (NPI) is 1578563292, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Paul Fields, M.D. located?
The NPPES record lists a practice address at 18109 Prince Philip Dr, Olney, MD, 20832. Phone: (301) 774-7115. Providers update this record themselves, so call before visiting.
How can I verify Robert Paul Fields, M.D.'s license?
NPPES lists Maryland license number D0034740, 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 Robert Paul Fields, M.D. prescribe under Medicare Part D?
In 2024, Robert Paul Fields, M.D. had 17 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.