DR. EILEEN P. SIMAK (D.O.) – Geriatric Medicine (Internal Medicine) Physician, NPI 1073516670

DR. EILEEN P. SIMAK (D.O.) is a healthcare provider. based in Philadelphia, Pennsylvania. specializing in GERIATRIC MEDICINE, INTERNAL MEDICINE. They hold the professional credentials D.O.. They hold a License No. OS012101 (PA). The NPI Number for DR. EILEEN P. SIMAK (D.O.) is 1073516670

Main info

Female
26 Years Of Experience
Accepts Medicare Assignment
Name
DR. EILEEN P. SIMAK (D.O.)
NPI
1073516670
Phone
(484) 884-4500
Address
PO BOX 783311
Enumeration Date
27 May 2005
Last Update Date
15 February 2019

Doctor Profile

Medical School Name
PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Secondary Phone
6104023390
Graduation Year
2000 (26 years ago)
PAC ID
6709865553
Group Practice PAC ID
3072425123
Professional Enrollment ID
I20040715001157
Address ID
PA181020000AL17XXXSTXX400
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:21State licenses:1Digital endpointsOther names

360 GERIATRIC MEDICINE in PA

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Provider Addresses for DR. EILEEN P. SIMAK (D.O.)

  • American Box and Recycling, Philadelphia, Philadelphia County, Pennsylvania, United States

    PHILADELPHIA, PA 191783311

    Phone: (484) 884-4500

    Fax: (484) 884-0699

    Type: Mailing

  • Chew Street, Old Allentown, Allentown, Lehigh County, Pennsylvania, 18104, United States

    ALLENTOWN, PA 18102

    Phone: (610) 969-3390

    Fax: (610) 969-3393

    Type: Location

  • 801 Ostrum St

    Bethlehem, PA 180151000

    Phone: (610) 954-4000

    Type: Location

  • 1627 Chew St

    Allentown, PA 18102

    Phone: (610) 969-3390

    Fax: (610) 969-3393

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-07-15

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040715001157IGeriatric MedicinePATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes366114$0
99214Established patient office or other outpatient visit, 30-39 minutes204142$0
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes115114$0
99204New patient office or other outpatient visit, 45-59 minutes5858$0
99213Established patient office or other outpatient visit, 20-29 minutes4037$0
View full utilization report →

Insurance plans in this area (ZIP 19178)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3072425123View full group profile

Reviews

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Frequently asked questions

Can I use this page to confirm DR. EILEEN P. SIMAK (D.O.)'s NPI?
Yes. DR. EILEEN P. SIMAK (D.O.) is listed with NPI 1073516670 in the public NPI dataset.
Is DR. EILEEN P. SIMAK (D.O.) listed as active for patients and plans?
The listing shows DR. EILEEN P. SIMAK (D.O.) as active in the NPI system.
What is DR. EILEEN P. SIMAK (D.O.)'s specialty?
The listing groups DR. EILEEN P. SIMAK (D.O.) with Geriatric Medicine (Internal Medicine) Physician. Clinical services aligned with this taxonomy classification.
Where is DR. EILEEN P. SIMAK (D.O.) based?
DR. EILEEN P. SIMAK (D.O.) is tied to Philadelphia, Pennsylvania in the data we show; additional addresses may exist on the full record.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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