2026 NPPES data Medical Physician Assistant NPI 1164684015 PA-C
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JENNIFER BASTIS, PA-C

Medical Physician Assistant in NORWELL, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
5K
Medicare Part D claims · 408 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JENNIFER BASTIS, PA-C is a Medical Physician Assistant ([object Object]) practicing in NORWELL, Massachusetts with a Medicare Part D prescribing footprint of 5K claims across 408 beneficiaries — 13% brand-name prescribing .

What stands out: JENNIFER BASTIS, PA-C filed 5,227 Medicare Part D claims in 2023 across NORWELL, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JENNIFER BASTIS, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 07/01/2008

NPI 1164684015

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

5,227 385% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Massachusetts

How Medical Physician Assistant compares to other specialties among Massachusetts providers

Massachusetts providers

Medical Physician Assistant share within Massachusetts

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Medical Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

JENNIFER BASTIS, PA-C is a Medical Physician Assistant provider practicing in NORWELL, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1164684015. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JENNIFER BASTIS, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 99 LONGWATER CIR, NORWELL, MA, 02061, with a listed phone of (781) 659-1800. NPI 1164684015 was issued on 07/01/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BASTIS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 5,227 prescription claims written by this provider, covering 408 Medicare beneficiaries and totaling roughly $481K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 0.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

99 LONGWATER CIR
NORWELL, MA 02061

Provider Details

NPI 1164684015
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 07/01/2008

Hospital and facility affiliations

Facilities where JENNIFER BASTIS, PA-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

ATRIUS HEALTH INC
NEEDHAM, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Massachusetts BORIM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to JENNIFER BASTIS, PA-C. To verify JENNIFER BASTIS, PA-C's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

JENNIFER BASTIS, PA-C — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 5,227 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

5,227
Total Claims
$481K
Total Drug Cost
408
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,897
Total Day Supply
346,083
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$368K
Generic Drug Cost
$109K
Opioid Claims
19 (0.4% rate)
Antibiotic Claims
108

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.98
Gender Split
77% female / 23% male
Age Distribution
<65: 39, 65-74: 199, 75-84: 128, 85+: 42

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
349
Amlodipine Besylate
304
Lisinopril
251
Levothyroxine Sodium
201
Omeprazole
190
Simvastatin
158
Gabapentin
152
Metoprolol Succinate
123
Trazodone Hcl
119
Metformin Hcl Er
Metformin Hcl
112

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Medical Physician Assistant Overview

How JENNIFER BASTIS, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

JENNIFER BASTIS, PA-C's 5,227 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Massachusetts

Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as BASTIS.

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is JENNIFER BASTIS, PA-C's specialty?
JENNIFER BASTIS, PA-C specializes in Medical Physician Assistant and practices in NORWELL, Massachusetts. Credentials: PA-C.
How much does JENNIFER BASTIS, PA-C prescribe under Medicare Part D?
In 2023, JENNIFER BASTIS, PA-C wrote 5,227 Medicare Part D claims totaling $481K in drug costs for 408 beneficiaries.
Where is JENNIFER BASTIS, PA-C located?
JENNIFER BASTIS, PA-C is located at 99 LONGWATER CIR, NORWELL, MA, 02061. Phone: (781) 659-1800.
What is JENNIFER BASTIS, PA-C's NPI number?
JENNIFER BASTIS, PA-C's National Provider Identifier (NPI) is 1164684015, issued on 07/01/2008.
Does JENNIFER BASTIS, PA-C prescribe more brand-name or generic drugs?
JENNIFER BASTIS, PA-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $368K in brand drug costs.
Does JENNIFER BASTIS, PA-C prescribe opioids?
Yes, JENNIFER BASTIS, PA-C had 19 opioid claims in 2023 with an opioid prescribing rate of 0.4%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does JENNIFER BASTIS, PA-C prescribe most often?
Based on 2023 Medicare Part D data, JENNIFER BASTIS, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNIFER BASTIS, PA-C accept Medicare?
JENNIFER BASTIS, PA-C appears in CMS Medicare data with 5,227 Part D claims and 408 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER BASTIS, PA-C's credentials?
JENNIFER BASTIS, PA-C's NPI is 1164684015 with credentials PA-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology