Katherine Penberthy, M.D.
Internal Medicine Physician · Gloucester City, NJ
Katherine Penberthy, M.D. is an internal medicine physician with a practice address in Gloucester City, New Jersey, and NPI 1255420667, issued on Oct 12, 2006. Check the license (New Jersey MA077687, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Katherine Penberthy
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MA077687 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 430 S Broadway, Gloucester City, NJ 08030
- Phone
- (856) 456-0518
- Enumerated
- Oct 12, 2006
- Record last updated
- Jul 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 0070106 NJ
- Medicare enrollment
- Enrolled (PECOS I20050808000427); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2001
- Entity
- Type 1 · individual
Also registered at 430 S Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Saaniya Ajmeri, MDInternal Medicine Physician1528554342
- Rosemarie Stag, RN, APN-CFamily Nurse Practitioner1447588611
Verify Katherine Penberthy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license MA077687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average internal medicine physician in 2024
4,789 Medicare Part D claims for 672 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. 161 claims were for opioids.
Most prescribed
- Atorvastatin Calcium345 claims
- Levothyroxine Sodium190 claims
- Amlodipine Besylate188 claims
- Lisinopril172 claims
- Rosuvastatin Calcium153 claims
- Fluticasone Propionate149 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 MIPS final score for 2023 (Medicare payment program): 99.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $31.67
2 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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
- Cooper Family Medicine PCHaddon Heights, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
3 internal medicine physician records list a practice address in Gloucester City
They are 3 of the 34 NPPES records with a practice address in Gloucester City, and 4,632 internal medicine physician records in New Jersey.
All 3 in Gloucester City → All 4,632 in New Jersey → Every provider in Gloucester City →
Other internal medicine physician records in New Jersey
- Joseph Aaron, MD, FACPShort Hills, NJ1861584633
- Sirike Aasmaa, DOMontville, NJ1861549925
- Holly Abate Bersalona, M.D.Sea Girt, NJ1669500492
- Kaniz Zehra Abbas, MDTrenton, NJ1598253858
- Shahida Abbas, MDOld Bridge, NJ1023104098
- Shahed AbbasiNewark, NJ1477810752
- Samih Abbassi, MDWest Orange, NJ1750380358
- Somaya Abboud, MDWest Orange, NJ1326089004
- Hilal Abboushi, MDBloomfield, NJ1548378029
- Anthony Abbruzzi, D.O.Pleasantville, NJ1629034905
Common questions
What is Katherine Penberthy, M.D.'s NPI number?
Katherine Penberthy, M.D.'s National Provider Identifier (NPI) is 1255420667, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Penberthy, M.D. located?
The NPPES record lists a practice address at 430 S Broadway, Gloucester City, NJ, 08030. Phone: (856) 456-0518. Providers update this record themselves, so call before visiting.
How can I verify Katherine Penberthy, M.D.'s license?
NPPES lists New Jersey license number MA077687, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Penberthy, M.D. prescribe under Medicare Part D?
In 2024, Katherine Penberthy, M.D. had 4,789 Medicare Part D claims for 672 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Katherine Penberthy, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.3 of 100. 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.