NPPES file of Aug 9, 2026

Rebecca M. Calder, P.A.-C

Physician Assistant · Philadelphia, PA

Rebecca M. Calder, P.A.-C is a physician assistant with a practice address in Philadelphia, Pennsylvania, and NPI 1881993988, issued on Mar 15, 2011. Check the license (Pennsylvania MA054822, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881993988
Name
Rebecca M. Calder
Credential
P.A.-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
MA054822 PA
OA002620 PA
Self-reported in NPPES; status is on the state search
Practice location
253 S 10TH St, Philadelphia, PA 19107
Phone
(215) 829-0170
Enumerated
Mar 15, 2011
Record last updated
May 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140709002046); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Rebecca M. Calder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license MA054822
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Pennsylvania license search

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88% fewer Medicare Part D claims than the average physician assistant in 2024

98 Medicare Part D claims for 76 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Rebecca Calder98
  2. Specialty average830

Most prescribed

  1. Ibuprofen14 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): 83.1 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.

  1. Qualityout of 100 · 30% of the final score72.9
  2. Costout of 100 · 30%61.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. ON Demand Urgent Care Group PCHavertown, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rebecca M. Calder among 8,020 physician assistant records in Pennsylvania

Rebecca M. Calder, P.A.-C is one of 8,020 physician assistant records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 27% of them.

  • NPI issued2011 · 27% of these records are older, 69% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2010 · median 2018 among the 5,313 with a school on file
  • Record last updated2020 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

955 physician assistant records list a practice address in Philadelphia

They are 955 of the 42,849 NPPES records with a practice address in Philadelphia, and 8,020 physician assistant records in Pennsylvania.

The 8 physician assistant records with the nearest ZIP codes

  1. Robyn Alexander, P.A.Philadelphia, PA 191071134245897
  2. Jason Ausmus, PA-CPhiladelphia, PA 191071285803171
  3. Stacey Blasko, PA-CPhiladelphia, PA 191071225363666
  4. Melissa Carrasquillo, PA-CPhiladelphia, PA 191071821266016
  5. Kathryn Janick, PA CPhiladelphia, PA 191071700818937
  6. Lawrence King, PA-CPhiladelphia, PA 191071831390681
  7. Susan Langmuir, PAPhiladelphia, PA 191071649211525
  8. Laura Lonergan, PA-CPhiladelphia, PA 191071598925174

Common questions

What is Rebecca M. Calder, P.A.-C's NPI number?

Rebecca M. Calder, P.A.-C's National Provider Identifier (NPI) is 1881993988, issued on Mar 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Rebecca M. Calder, P.A.-C located?

The NPPES record lists a practice address at 253 S 10TH St, Philadelphia, PA, 19107. Phone: (215) 829-0170. Providers update this record themselves, so call before visiting.

How can I verify Rebecca M. Calder, P.A.-C's license?

NPPES lists Pennsylvania license number MA054822, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Rebecca M. Calder, P.A.-C prescribe under Medicare Part D?

In 2024, Rebecca M. Calder, P.A.-C had 98 Medicare Part D claims for 76 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Rebecca M. Calder, P.A.-C's MIPS final score?

The 2023 MIPS final score is 83.1 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.