NPPES file of Aug 9, 2026

Thomas Steven Guagliardo, D.O.

Nephrology Physician · Langhorne, PA

Thomas Steven Guagliardo, D.O. is a nephrology physician with a practice address in Langhorne, Pennsylvania, and NPI 1538321617, issued on Jun 30, 2008. Check the license (Pennsylvania OS014643, as entered in NPPES) 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
1538321617
Name
Thomas Steven Guagliardo
Credential
D.O.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
OS014643 PA
Self-reported in NPPES; status is on the state search
Practice location
825 Town Center Dr, Langhorne, PA 19047
Phone
(215) 741-3510
Enumerated
Jun 30, 2008
Record last updated
Jan 6, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(215) 741-3519
Medicaid IDs
0323187 NJ
1027257070003 PA
Medicare enrollment
Enrolled (PECOS I20141106001632); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2007
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 825 Town Center Dr

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

  1. Zubin Kolangaden, MDNephrology Physician1568666303
  2. Michael Mann, DOHematology & Oncology Physician1649242009
  3. Ellen Miller, DONephrology Physician1073550257

Verify Thomas Steven Guagliardo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS014643
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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40% fewer Medicare Part D claims than the average nephrology physician in 2024

881 Medicare Part D claims for 211 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Thomas Guagliardo881
  2. Specialty average1,465

Most prescribed

  1. Calcitriol103 claims
  2. Furosemide90 claims
  3. Amlodipine Besylate75 claims
  4. Lisinopril74 claims
  5. Losartan Potassium51 claims
  6. Farxiga48 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: $265.84

8 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Guagliardo$265.84
  2. Specialty average$3,091.37

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. Nephrology Hypertension SpecialistsDoylestown, PA

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

Thomas Steven Guagliardo among 651 nephrology physician records in Pennsylvania

Thomas Steven Guagliardo, D.O. is one of 651 nephrology physician records with a practice address in Pennsylvania. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.

  • NPI issued2008 · 58% of these records are older, 35% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2007 · median 2001 among the 468 with a school on file
  • Record last updated2015 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Pennsylvania

There are 651 nephrology physician records in Pennsylvania.

The 8 nephrology physician records with the nearest ZIP codes

  1. Muhammad Anis, M.D.Langhorne, PA 190471316971666
  2. Sweta Carpenter, M.D.Langhorne, PA 190471487948865
  3. Mita Zahra Co, M.D.Langhorne, PA 190471851742423
  4. Christopher Frankel, M.D.Langhorne, PA 190471952336182
  5. Sushmitha Gandra, MDLanghorne, PA 190471265643563
  6. Zubin Kolangaden, MDLanghorne, PA 190471568666303
  7. Kimon Kostopoulos, DOLanghorne, PA 190471609813880
  8. Ellen Miller, DOLanghorne, PA 190471073550257

Common questions

What is Thomas Steven Guagliardo, D.O.'s NPI number?

Thomas Steven Guagliardo, D.O.'s National Provider Identifier (NPI) is 1538321617, issued on Jun 30, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Steven Guagliardo, D.O. located?

The NPPES record lists a practice address at 825 Town Center Dr, Langhorne, PA, 19047. Phone: (215) 741-3510. Providers update this record themselves, so call before visiting.

How can I verify Thomas Steven Guagliardo, D.O.'s license?

NPPES lists Pennsylvania license number OS014643, 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 Thomas Steven Guagliardo, D.O. prescribe under Medicare Part D?

In 2024, Thomas Steven Guagliardo, D.O. had 881 Medicare Part D claims for 211 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.