NPPES file of Aug 9, 2026

Kelsey Hassig, DO

Infectious Disease Physician · Philadelphia, PA

Kelsey Hassig, DO is an infectious disease physician with a practice address in Philadelphia, Pennsylvania, and NPI 1750888384, issued on Apr 10, 2018. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1750888384
Name
Kelsey Hassig
Credential
DO
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
25MB12274600 NJ
Self-reported in NPPES; status is on the state search
Practice location
1080 N Delaware Ave Ste 800, Philadelphia, PA 19125
Phone
(267) 463-5800
Enumerated
Apr 10, 2018
Record last updated
Jul 12, 2024
Medicare enrollment
Enrolled (PECOS I20240719002471); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2018
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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Also registered at 1080 N Delaware Ave Ste 800

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tina Ahmadinejad, M.D.Family Medicine Physician1114331337
  2. Kara Bednar, LPCCounselor1811863921
  3. Avigad Feldman, NP-CPrimary Care Nurse Practitioner1073977245
  4. Nicholas Galanakis, PHARMD, AE-C, AAHIVPPharmacist1548789738
  5. Annie Kou Chow, M.D.Family Medicine Physician1164682761
  6. Madison Matello, PA-CMedical Physician Assistant1114793783

Verify Kelsey Hassig in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)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
Open the Pennsylvania license search

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94% fewer Medicare Part D claims than the average infectious disease physician in 2024

43 Medicare Part D claims, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.

  1. Kelsey Hassig43
  2. Specialty average689

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: $178.53

3 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kelsey Hassig$178.53
  2. Specialty average$4,362.19

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

  1. Cmc Department OF Medicine Group PACamden, NJ

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

Infectious Disease Physician providers in Pennsylvania

There are 545 infectious disease physician records in Pennsylvania.

Other infectious disease physician records in Pennsylvania

  1. Cybele Abad, M.D.Pittsburgh, PA1619900453
  2. Rasha Abdulmassih, MDPittsburgh, PA1891073706
  3. David Abel, D.O.Lancaster, PA1629362850
  4. Nana AburjaniaPhiladelphia, PA1053540955
  5. Amesh Adalja, MDPittsburgh, PA1023209871
  6. Monica Ahuja, MDWilkes Barre, PA1982030524
  7. Nancy Aitcheson, MDPhiladelphia, PA1184019697
  8. Okan Akay, M.D.Harrisburg, PA1548503584
  9. Aisha Akhtar, MDEast Norriton, PA1861020430
  10. Shafinaz Akhter, MDWest Chester, PA1710040431

Common questions

What is Kelsey Hassig, DO's NPI number?

Kelsey Hassig, DO's National Provider Identifier (NPI) is 1750888384, issued on Apr 10, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Kelsey Hassig, DO located?

The NPPES record lists a practice address at 1080 N Delaware Ave Ste 800, Philadelphia, PA, 19125. Phone: (267) 463-5800. Providers update this record themselves, so call before visiting.

How can I verify Kelsey Hassig, DO's license?

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 Kelsey Hassig, DO prescribe under Medicare Part D?

In 2024, Kelsey Hassig, DO had 43 Medicare Part D claims; the average among infectious disease physician prescribers was 689. 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.