DR. LISA L HAMAKER DUMIN M.D.
NPI 1003024811
Internal Medicine - Endocrinology, Diabetes & Metabolism in Collegeville, PA

Q: What is Lisa Hamaker Dumin's NPI number?

The NPI number for Lisa Hamaker Dumin is 1003024811. It was assigned to this individual provider in the NPPES registry on May 18, 2007.

Q: What is Lisa Hamaker Dumin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Active since May 18, 2007PECOS EnrolledAccepts Medicare Assignment

100 MARKET ST STE 300, COLLEGEVILLE, PA 19426(484) 622-6401(484) 622-6403 Get Directions Write a Review

NPPES record last updated: May 18, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 18, 2026, Feb 4, 2019, Nov 15, 2018 (3 updates tracked since 2018).

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About Dr. Lisa L Hamaker Dumin M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LISA L HAMAKER DUMIN M.D. (NPI 1003024811) is an individual endocrinology, diabetes & metabolism provider in Collegeville, Pennsylvania, licensed in Pennsylvania (MD426368) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Penn State Health Holy Spirit Medical Center, and is a graduate of Pennsylvania State University College Of Medicine (2002).

NPPES Registry Identity

NPI1003024811

Entity TypeIndividualFemale

Primary Taxonomy207RE0101X

Provider Legal NameDR. LISA L HAMAKER DUMINCredential: M.D.

Location Address100 MARKET ST STE 300Collegeville, PA 19426-4927

Mailing Address346 Belrose LnWayne, PA 19087-4417

Phone(484) 622-6401

Fax(484) 622-6403

Sole ProprietorNo

Medical School CMSPennsylvania State University College Of MedicineGraduated 2002

Enumeration DateMay 18, 2007

Last NPPES UpdateMay 18, 20263 updates tracked since enumeration

NPPES CertifiedMay 18, 2026

✔ NPI 1003024811 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in PA · MD426368

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

100 MARKET ST STE 300, Collegeville, PA 19426

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Lisa L Hamaker Dumin M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234201922

PECOS Enrollment IDI20080714000144

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Lisa Hamaker Dumin reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Fornance Physician Services, Inc

Same address

Internal Medicine

100 MARKET ST
Collegeville, PA 19426

Reassigned Medicare billing, Pennsylvania enrollment
192 clinicians in this Medicare group

NPI 1023439825 (484) 622-6400

Einstein Practice Plan Inc

18 mi

Psychiatry

4200 MONUMENT AVE
Philadelphia, PA 19131

Reassigned Medicare billing, Pennsylvania enrollment
1,205 clinicians in this Medicare group

NPI 1144272733 (215) 456-7000

Penn State Health Medical Group, LLC

28 mi

Pediatrics

655 WALNUT ST
West Reading, PA 19611

Reassigned Medicare billing, Pennsylvania enrollment
994 clinicians in this Medicare group

NPI 1609347152 (610) 372-9222

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

315 services165 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

50 services47 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Penn State Health Holy Spirit Medical Center

Acute Care Hospitals · Camp Hill, PA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390004

Location503 North 21st StreetCamp Hill, PA 17011 · Cumberland County

Emergency services

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390111

Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County

Emergency services Birthing friendly

Paoli Hospital

Acute Care Hospitals · Paoli, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390153

Location255 West Lancaster AvenuePaoli, PA 19301 · Chester County

Emergency services Birthing friendly

Milton S Hershey Medical Center

Acute Care Hospitals · Hershey, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390256

Location500 University DriveHershey, PA 17033 · Dauphin County

Emergency services Birthing friendly

Einstein Medical Center Montgomery

Acute Care Hospitals · East Norriton, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390329

Location559 West Germantown PikeEast Norriton, PA 19403 · Montgomery County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19426 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$137.17 typical visit price

range $59.88 – $180.99

Typical copayment $34.29 (range $14.97 – $45.24)

Most-billed visit code 99204

Established Patient

$105.21 typical visit price

range $19.30 – $147.29

Typical copayment $26.30 (range $4.82 – $36.82)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224

DME-Other DME · category DE017N

4 suppliers18 claims259 services$18.32 avg. paid by Medicare

Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225

DME-Other DME · category DE017N

4 suppliers19 claims630 services$2.25 avg. paid by Medicare

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

24 suppliers83 claims205 services$6.11 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

14 suppliers37 claims48 services$0.97 avg. paid by Medicare

External ambulatory infusion pump, insulin E0784

DME-Other DME · category DE017N

4 suppliers32 claims32 services$311.18 avg. paid by Medicare

Insulin for administration through dme (i.e., insulin pump) per 50 units J1817

Treatment-Injections and Infusions (nononcologic) · category RI000N

4 suppliers23 claims1,880 services$7.06 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SUMON AGARWALA MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

100 MARKET ST STE 300
COLLEGEVILLE, PA 19426

Montgomery County (484) 622-6401

ROBERT J TALAMO MD

Family Medicine

100 MARKET ST STE 300
COLLEGEVILLE, PA 19426

Montgomery County (484) 622-6400

DR. ROBERT DYER MD

Orthopaedic Surgery (Sports Medicine)

100 MARKET ST STE 300
COLLEGEVILLE, PA 19426

Montgomery County (484) 622-6400

DR. NANCY KIESER BRIDGENS D.O.

Obstetrics & Gynecology (Maternal & Fetal Medicine)

100 MARKET ST STE 300
COLLEGEVILLE, PA 19426

Montgomery County (484) 622-7940

VISHAL DATTA M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

100 MARKET ST STE 300
COLLEGEVILLE, PA 19426

Montgomery County (215) 997-9441

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lisa Hamaker Dumin's NPI number?

The NPI number for Lisa Hamaker Dumin is 1003024811. It was assigned to this individual provider in the NPPES registry on May 18, 2007.

Where is Lisa Hamaker Dumin located?

Lisa Hamaker Dumin practices at 100 Market St Ste 300, Collegeville, PA 19426. The listed phone number is (484) 622-6401.

What is Lisa Hamaker Dumin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Lisa Hamaker Dumin enrolled in Medicare?

Yes. Lisa Hamaker Dumin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Lisa Hamaker Dumin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lisa Hamaker Dumin reassigns Medicare benefits to 3 organizations: Fornance Physician Services, Inc (Collegeville, PA), Einstein Practice Plan Inc (Philadelphia, PA) and Penn State Health Medical Group, LLC (West Reading, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lisa Hamaker Dumin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Lisa Hamaker Dumin affiliated with any hospitals?

According to CMS data, Lisa Hamaker Dumin is affiliated with Penn State Health Holy Spirit Medical Center, Hospital Of Univ Of Pennsylvania, Paoli Hospital, Milton S Hershey Medical Center and Einstein Medical Center Montgomery.

When was this NPI record last updated?

The NPPES record for Lisa Hamaker Dumin was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.