NPPES file of Aug 9, 2026

Jacek Zdzislaw Obara, M.D.

Family Medicine Physician · Pottstown, PA

Jacek Zdzislaw Obara, M.D. is a family medicine physician with a practice address in Pottstown, Pennsylvania, and NPI 1871715771, issued on May 2, 2007. Check the license (Pennsylvania MD443274, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871715771
Name
Jacek Zdzislaw Obara
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
MD443274 PA
235325 MA
Self-reported in NPPES; status is on the state search
Practice location
11 Robinson St Ste 100, Pottstown, PA 19464
Phone
(610) 326-9460
Enumerated
May 2, 2007
Record last updated
Nov 18, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20111130000841); 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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Also registered at 11 Robinson St Ste 100

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

  1. Robert MillerDental Hygienist1386055051

Verify Jacek Zdzislaw Obara 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 MD443274
    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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99% fewer Medicare Part D claims than the average family medicine physician in 2024

43 Medicare Part D claims for 21 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Jacek Obara43
  2. Specialty average3,544

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): 78.4 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 score81.1
  2. Costout of 100 · 30%48.4
  3. Promoting interoperabilityout of 100 · 25%98.0
  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 2 group practices

  1. Phoenixville Clinic Company LLCPhoenixville, PA
  2. Pottstown Clinic Company LLCPottstown, PA

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

Jacek Zdzislaw Obara among 7,483 family medicine physician records in Pennsylvania

Jacek Zdzislaw Obara, M.D. is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 46% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2003 · median 2005 among the 4,529 with a school on file
  • Record last updated2011 · 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 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 family medicine physician records list a practice address in Pottstown

They are 18 of the 2,064 NPPES records with a practice address in Pottstown, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. John Andersen, MDPotts, PA 194641891801981
  2. Noah Bass, DOPottstown, PA 194641669442885
  3. Simon Boulattouf, M.D.Pottstown, PA 194641821383761
  4. Kyle Davis, DOPottstown, PA 194641376905745
  5. Barbara Elko, MDPottstown, PA 194641306810999
  6. Cornelius Geissen, DOStowe, PA 194641518938646
  7. Gregory Giamo, DOPottstown, PA 194641821078643
  8. Alan Goldberg, MDPottstown, PA 194641538149844

Common questions

What is Jacek Zdzislaw Obara, M.D.'s NPI number?

Jacek Zdzislaw Obara, M.D.'s National Provider Identifier (NPI) is 1871715771, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jacek Zdzislaw Obara, M.D. located?

The NPPES record lists a practice address at 11 Robinson St Ste 100, Pottstown, PA, 19464. Phone: (610) 326-9460. Providers update this record themselves, so call before visiting.

How can I verify Jacek Zdzislaw Obara, M.D.'s license?

NPPES lists Pennsylvania license number MD443274, 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 Jacek Zdzislaw Obara, M.D. prescribe under Medicare Part D?

In 2024, Jacek Zdzislaw Obara, M.D. had 43 Medicare Part D claims for 21 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Jacek Zdzislaw Obara, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.4 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.