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MRS. HEIDI ANN O'BRIEN PA-C
NPI 1417057944
Physician Assistant in Milford, MA

Active since September 24, 2006PECOS EnrolledAccepts Medicare Assignment
115 WATER ST, SUITE 104, MILFORD, MA 01757(508) 482-5411(508) 482-5417 Get Directions Write a Review

NPPES record last updated: January 4, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Heidi Ann O'brien Pa-c NPPES

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

MRS. HEIDI ANN O'BRIEN PA-C (NPI 1417057944) is an individual physician assistant in Milford, Massachusetts, licensed in Massachusetts (AP 1492) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1417057944
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMRS. HEIDI ANN O'BRIENCredential: PA-C
Location Address115 WATER ST, SUITE 104Milford, MA 01757-3015
Mailing Address9 Industrial Rd, Suite 5Milford, MA 01757-3735 · (508) 473-1480 · Fax (508) 473-1210
Phone(508) 482-5411
Fax(508) 482-5417
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateSeptember 24, 2006
Last NPPES UpdateJanuary 4, 2016
✔ NPI 1417057944 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MA · AP 1492
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
115 WATER ST, Milford, MA 01757
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Other Names 1

Former Name (1)Heidi Ann Baron

Other Identifiers 1

Medicare UPINAP1802

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mrs. Heidi Ann O'brien Pa-c 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 ID2961489232
PECOS Enrollment IDI20040706000108
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.

Areas of Expertise CMS Part B claims 8

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 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.
133 services118 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
112 services109 patients
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.
109 services102 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
93 services79 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
57 services53 patients
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202
This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
20 services20 patients

Hospital Affiliations CMS Care Compare 2

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

Milford Regional Medical Center

Acute Care Hospitals · Milford, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220090
Location14 Prospect StreetMilford, MA 01757 · Worcester County
Emergency services Birthing friendly

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01757 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
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 4

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

Indwelling catheter; foley type, two-way latex with coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4338
DME-Orthotic Devices · category DF000N
3 suppliers16 claims40 services$9.72 avg. paid by Medicare
Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351
DME-Orthotic Devices · category DF008N
5 suppliers38 claims9,300 services$1.68 avg. paid by Medicare
Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352
DME-Orthotic Devices · category DF008N
3 suppliers23 claims1,380 services$5.97 avg. paid by Medicare
Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357
DME-Orthotic Devices · category DF000N
3 suppliers27 claims64 services$6.38 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 7

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

DR. EDDIE E. MICHLI MD
Urology
115 WATER ST, SUITE 104
MILFORD, MA 01757
Worcester County (508) 482-5411
LINE-UP SERVICES, INC.
In Home Supportive Care
115 WATER ST, SUITE 200
MILFORD, MA 01757
Worcester County (508) 282-5020
JACQUELYN T. MARSHALL FNP-BC
Nurse Practitioner
115 WATER ST
MILFORD, MA 01757
Worcester County (774) 462-3380
MS. LOIS PALOMBA ROBBINS N.P.
Nurse Practitioner (Family)
115 WATER ST, 2ND FLOOR
MILFORD, MA 01757
Worcester County (508) 422-2775
DR. RALPH CAHALY M.D.
Allergy & Immunology (Allergy)
115 WATER ST
MILFORD, MA 01757
Worcester County (508) 634-8700
AMOS O. ADELOWO M.D.
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
115 WATER ST
MILFORD, MA 01757
Worcester County (774) 462-3380
BEATA E. KERSEZTI, M.D., P.C.
Specialist
115 WATER ST, SUITE 105
MILFORD, MA 01757
Worcester County (508) 478-6880

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 Heidi O'brien's NPI number?

The NPI number for Heidi O'brien is 1417057944. It was assigned to this individual provider in the NPPES registry on September 24, 2006. The provider is also known as Heidi Ann Baron.

Where is Heidi O'brien located?

Heidi O'brien practices at 115 Water St Suite 104, Milford, MA 01757. The listed phone number is (508) 482-5411.

What is Heidi O'brien's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Heidi O'brien enrolled in Medicare?

Yes. Heidi O'brien 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.

Is Heidi O'brien affiliated with any hospitals?

According to CMS data, Heidi O'brien is affiliated with Milford Regional Medical Center and Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Heidi O'brien was last updated on January 4, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.