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MR. DANIEL PATRICK O'BRIEN PA-C
NPI 1689284366
Emergency Medicine in Southborough, MA

Active since August 06, 2020PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
9 WATKINS LN, SOUTHBOROUGH, MA 01772(508) 612-1567 Get Directions Write a Review

NPPES record last updated: August 28, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 8, 2021, Aug 6, 2020 (2 updates tracked since 2020).

About Mr. Daniel Patrick O'brien Pa-c NPPES

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

MR. DANIEL PATRICK O'BRIEN PA-C (NPI 1689284366) is an individual emergency medicine provider in Southborough, Massachusetts, licensed in Massachusetts (PA8087) and active in the NPI registry since August 2020. He is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and maintains a secondary practice location in Milford.

NPPES Registry Identity

NPI1689284366
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMR. DANIEL PATRICK O'BRIENCredential: PA-C
Location Address9 WATKINS LNSouthborough, MA 01772-2072
Mailing Address8 Cirrus Dr Apt 8103Ashland, MA 01721-4458 · (508) 612-1567
Phone(508) 612-1567
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateAugust 6, 2020
Last NPPES UpdateAugust 28, 20252 updates tracked since enumeration
NPPES CertifiedAugust 28, 2025
✔ NPI 1689284366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in MA · PA8087
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedPhysician AssistantTaxonomy 363A00000X · License PA8087 (MA)
9 WATKINS LN, Southborough, MA 01772
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Secondary Practice Location 1

Location 1129 S Main StMilford, MA 01757-3290 · Phone (774) 462-3339 · Fax (508) 381-0204

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

Mr. Daniel Patrick 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 ID8022414770
PECOS Enrollment IDI20210907000736
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

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.
27 services27 patients

Hospital Affiliations CMS Care Compare

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01772 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
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Improvement Activities40

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 Daniel O'brien's NPI number?

The NPI number for Daniel O'brien is 1689284366. It was assigned to this individual provider in the NPPES registry on August 6, 2020.

Where is Daniel O'brien located?

Daniel O'brien practices at 9 Watkins Ln, Southborough, MA 01772. The listed phone number is (508) 612-1567.

What is Daniel O'brien's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Daniel O'brien enrolled in Medicare?

Yes. Daniel 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 Daniel O'brien affiliated with any hospitals?

According to CMS data, Daniel O'brien is affiliated with Milford Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Daniel O'brien was last updated on August 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.