Nathaniel Robertson, M.D.
Internal Medicine Physician · Philadelphia, PA
Nathaniel Robertson, M.D. is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1831577345, issued on May 16, 2015. Check the license (Pennsylvania MT208510, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Nathaniel Robertson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MT208510 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3401 N Broad St, Philadelphia, PA 19140
- Phone
- (215) 707-2000
- Enumerated
- May 16, 2015
- Record last updated
- Jul 18, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200716004019); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 3401 N Broad St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathaniel Robertson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MT208510Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
424 Medicare Part D claims for 126 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Metoprolol Succinate41 claims
- Atorvastatin Calcium26 claims
- Clopidogrel23 claims
- Amlodipine Besylate20 claims
- Lisinopril19 claims
- Eliquis18 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.7 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).
Bills Medicare through one group practice
- Phoenixville Clinic Company LLCPhoenixville, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel Robertson among 7,300 internal medicine physician records in Pennsylvania
Nathaniel Robertson, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 62% of them.
- NPI issued2015 · 62% of these records are older, 35% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2015 · median 2008 among the 4,208 with a school on file
- Record last updated2017 · 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 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kathleen Coppola, MDPhiladelphia, PA 191401932197837
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- Susan Gersh, MDPhiladelphia, PA 191401780672659
- Sharon Herring, MDPhiladelphia, PA 191401285600197
- Lawrence Kaplan, MDPhiladelphia, PA 191401225026198
- Karen Lin, MDPhiladelphia, PA 191401194713099
- Keith McNellis, MDPhiladelphia, PA 191401003804907
- Faria Mesgar, MDPhiladelphia, PA 191401104814268
Common questions
What is Nathaniel Robertson, M.D.'s NPI number?
Nathaniel Robertson, M.D.'s National Provider Identifier (NPI) is 1831577345, issued on May 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Robertson, M.D. located?
The NPPES record lists a practice address at 3401 N Broad St, Philadelphia, PA, 19140. Phone: (215) 707-2000. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Robertson, M.D.'s license?
NPPES lists Pennsylvania license number MT208510, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathaniel Robertson, M.D. prescribe under Medicare Part D?
In 2024, Nathaniel Robertson, M.D. had 424 Medicare Part D claims for 126 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Nathaniel Robertson, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.7 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.