2026 NPPES data Medical Physician Assistant NPI 1558899906 PA-C
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SEAN OBER, PA-C

Medical Physician Assistant in FREDERICKSBURG, Virginia. 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
254
Medicare Part D claims · 145 beneficiaries · Medical Physician Assistant avg: 1K

What the federal data shows

SEAN OBER, PA-C filed 254 Medicare Part D claims in 2023 as a Medical Physician Assistant in FREDERICKSBURG, Virginia.

254
Part D claims, 2023

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

SEAN OBER, PA-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

254 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about SEAN OBER, PA-C?

Quality data not reported

NPI registry status

Active

Issued 05/30/2017

NPI 1558899906

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

254 76% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Virginia

How Medical Physician Assistant compares to other specialties among Virginia providers

Virginia providers

Medical Physician Assistant share within Virginia

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

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).

SEAN OBER, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 1001 SAM PERRY BLVD, FREDERICKSBURG, VA, 22401, with a listed phone of (540) 741-1100. NPI 1558899906 was issued on 05/30/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what OBER 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 254 prescription claims written by this provider, covering 145 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 16.9%. 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

1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401

Provider Details

NPI 1558899906
Specialty Medical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 05/30/2017

Medicare Part D Prescribing Data

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

254
Total Claims
$4K
Total Drug Cost
145
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
254
Total Day Supply
2,713
Generic Drug Cost
$2K
Opioid Claims
43 (16.9% rate)
Antibiotic Claims
73

Patient Demographics

Average Patient Age
66.4 years
Avg HCC Risk Score
1.80
Gender Split
64% female / 36% male
Age Distribution
<65: 48, 65-74: 62, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What SEAN OBER, PA-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Naproxen
23
Cyclobenzaprine Hcl
21
Ondansetron Odt
Ondansetron
19
Tramadol Hcl
16
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
15
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
14
Cephalexin
13

* 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 SEAN OBER, 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

SEAN OBER, PA-C's 254 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Virginia

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

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

Frequently Asked Questions

What is SEAN OBER, PA-C's specialty?
SEAN OBER, PA-C specializes in Medical Physician Assistant and practices in FREDERICKSBURG, Virginia. Credentials: PA-C.
How much does SEAN OBER, PA-C prescribe under Medicare Part D?
In 2023, SEAN OBER, PA-C wrote 254 Medicare Part D claims totaling $4K in drug costs for 145 beneficiaries.
Where is SEAN OBER, PA-C located?
SEAN OBER, PA-C is located at 1001 SAM PERRY BLVD, FREDERICKSBURG, VA, 22401. Phone: (540) 741-1100.
What is SEAN OBER, PA-C's NPI number?
SEAN OBER, PA-C's National Provider Identifier (NPI) is 1558899906, issued on 05/30/2017.
Does SEAN OBER, PA-C prescribe opioids?
Yes, SEAN OBER, PA-C had 43 opioid claims in 2023 with an opioid prescribing rate of 16.9%.
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 SEAN OBER, PA-C prescribe most often?
Based on 2023 Medicare Part D data, SEAN OBER, PA-C's most frequently prescribed drugs include Naproxen, Cyclobenzaprine Hcl, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SEAN OBER, PA-C accept Medicare?
SEAN OBER, PA-C appears in CMS Medicare data with 254 Part D claims and 145 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SEAN OBER, PA-C's credentials?
SEAN OBER, PA-C's NPI is 1558899906 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