NPPES file of Aug 9, 2026

Joseph Louis Castelli, D.O.

Obstetrics & Gynecology Physician · King Of Prussia, PA

Joseph Louis Castelli, D.O. is an obstetrics & gynecology physician with a practice address in King Of Prussia, Pennsylvania, and NPI 1811991276, issued on Jun 13, 2005. Check the license (Pennsylvania OS006403E, 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
1811991276
Name
Joseph Louis Castelli
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
OS006403E PA
Self-reported in NPPES; status is on the state search
Practice location
583 Shoemaker RD, King Of Prussia, PA 19406
Phone
(610) 265-0184
Enumerated
Jun 13, 2005
Record last updated
Jun 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(610) 265-4088
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 1,974 in Pennsylvania → Look up another NPI →

Also registered at 583 Shoemaker RD

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

  1. Bryana AdornettoBehavior Analyst1093118523
  2. Brandi AlbaneseBehavior Technician1235708850
  3. Kulsoom AliBehavior Technician1467930388
  4. India BarcusBehavior Technician1245834142
  5. Chelsea BascouBehavior Technician1265071310
  6. Emily Bau-MadsenBehavior Analyst1326449950

Verify Joseph Louis Castelli 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 OS006403E    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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48% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

86 Medicare Part D claims for 49 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Joseph Castelli86
  2. Specialty average165

Most prescribed

  1. Valacyclovir21 claims
  2. Alendronate Sodium13 claims
  3. Estradiol13 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: $3,285.11

33 payments; by number, the most common kind was food and beverage; the largest payer was Merz North America, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joseph Castelli$3,285.11
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Joseph Louis Castelli among 1,974 obstetrics & gynecology physician records in Pennsylvania

Joseph Louis Castelli, D.O. is one of 1,974 obstetrics & gynecology physician records with a practice address in Pennsylvania. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Pennsylvania

There are 1,974 obstetrics & gynecology physician records in Pennsylvania.

All 1,974 in Pennsylvania → Every provider in King Of Prussia → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Masuma Bahora, MDKing Of Prussia, PA 194061912303033
  2. Tess Crouss, M.D.King Of Prussia, PA 194061780096370
  3. Philip Hirshman, M.D.King Of Prussia, PA 194061043232382
  4. Grace Laast Adofo, M.D.King Of Prussia, PA 194061457344269
  5. Michelle Djevharian, RN, CNMEast Norriton, PA 194031366524712
  6. Dominick Giuffrida, D.O.East Norriton, PA 194031063480135
  7. Cheung Kim, M.D.East Norriton, PA 194031619996469
  8. Shobhana Parameshwaran, MDEast Norriton, PA 194031013677939

Common questions

What is Joseph Louis Castelli, D.O.'s NPI number?

Joseph Louis Castelli, D.O.'s National Provider Identifier (NPI) is 1811991276, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Louis Castelli, D.O. located?

The NPPES record lists a practice address at 583 Shoemaker RD, King Of Prussia, PA, 19406. Phone: (610) 265-0184. Providers update this record themselves, so call before visiting.

How can I verify Joseph Louis Castelli, D.O.'s license?

NPPES lists Pennsylvania license number OS006403E, 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 Joseph Louis Castelli, D.O. prescribe under Medicare Part D?

In 2024, Joseph Louis Castelli, D.O. had 86 Medicare Part D claims for 49 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.