Edward P. Costlow, MD
Internal Medicine Physician · Timonium, MD
Edward P. Costlow, MD is an internal medicine physician with a practice address in Timonium, Maryland, and NPI 1275664450, issued on Mar 8, 2007. Check the license (Maryland D19503, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Edward P. Costlow
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D19503 MD
Self-reported in NPPES; status is on the state search - Practice location
- 10 Gerard Ave, Timonium, MD 21093
- Phone
- (410) 561-1585
- Enumerated
- Mar 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 252-0814
- Medicare enrollment
- Enrolled (PECOS I20150604000502); may accept Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1975
- Entity
- Type 1 · individual
Also registered at 10 Gerard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Maenner, L.C.P.C.Mental Health Counselor1053564062
- Lisa May-Sachs, LCSW-CMental Health Counselor1750430492
- Lindsey SuterClinical Social Worker1356764872
Verify Edward P. Costlow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D19503Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,872 Medicare Part D claims for 149 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Atorvastatin Calcium126 claims
- Levothyroxine Sodium86 claims
- Amlodipine Besylate75 claims
- Allopurinol50 claims
- Lisinopril49 claims
- Pantoprazole Sodium45 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.
Industry payments in 2024: $60.11
3 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Agape Physical Therapy And Sports Rehabilitation LPForest Hill, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
17 internal medicine physician records list a practice address in Timonium
They are 17 of the 612 NPPES records with a practice address in Timonium, and 3,904 internal medicine physician records in Maryland.
All 17 in Timonium → All 3,904 in Maryland → Every provider in Timonium →
Other internal medicine physician records in Maryland
- Eduardo Abarca Rojas, M.D.Parkville, MD1538447628
- Rasheed Abassi, M.D.Clinton, MD1376608620
- Ghulam Abbas, MDFrederick, MD1477658045
- Shamima Abbas, MDKensington, MD1750445896
- Nourelhuda Abbas Hamed, MDSilver Spring, MD1699339473
- Arsalan Abbasi, MDWestminster, MD1942762604
- Hamdi AbdeenGaithersburg, MD1245972413
- Mukemil Abdella, M.D.Glenn Dale, MD1871603381
- Suzan Abdo, MDClarksville, MD1588631824
- Madeeha Abdul GhaffarElkton, MD1194276063
Common questions
What is Edward P. Costlow, MD's NPI number?
Edward P. Costlow, MD's National Provider Identifier (NPI) is 1275664450, issued on Mar 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Edward P. Costlow, MD located?
The NPPES record lists a practice address at 10 Gerard Ave, Timonium, MD, 21093. Phone: (410) 561-1585. Providers update this record themselves, so call before visiting.
How can I verify Edward P. Costlow, MD's license?
NPPES lists Maryland license number D19503, 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 Edward P. Costlow, MD prescribe under Medicare Part D?
In 2024, Edward P. Costlow, MD had 1,872 Medicare Part D claims for 149 beneficiaries; 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.