2026 NPPES data Physician Assistant NPI 1659396398 PA-C
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CARL BERG, PA-C

Physician Assistant in BASTROP, Texas. 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
2K
Medicare Part D claims · 136 beneficiaries · Physician Assistant avg: 790
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$66.53
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CARL BERG, PA-C filed 2,429 Medicare Part D claims in 2023 as a Physician Assistant in BASTROP, Texas, prescribing 87% generic.

2K
Part D claims, 2023
87%
generic prescribing
$66.53
industry payments (Sunshine Act)

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.

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

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

2,429 Top 14% higher than 86% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 CARL BERG, PA-C?

Quality data not reported

NPI registry status

Active

Issued 07/13/2006

NPI 1659396398

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

2,429 207% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Texas

How Physician Assistant compares to other specialties among Texas providers

Texas providers

Physician Assistant share within Texas

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (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).

CARL BERG, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 605 OLD AUSTIN HWY, BASTROP, TX, 78602, with a listed phone of (877) 800-5722. NPI 1659396398 was issued on 07/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERG 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 2,429 prescription claims written by this provider, covering 136 Medicare beneficiaries and totaling roughly $245K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 0.7%. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

605 OLD AUSTIN HWY
BASTROP, TX 78602

Provider Details

NPI 1659396398
Specialty Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 07/13/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for CARL BERG, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$67

Largest payer

Merck Sharp & Dohme LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to CARL BERG, PA-C. To verify CARL BERG, PA-C's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

CARL BERG, PA-C — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 2,429 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.

2,429
Total Claims
$245K
Total Drug Cost
136
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,298
Total Day Supply
124,855
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$204K
Generic Drug Cost
$38K
Opioid Claims
16 (0.7% rate)
Antibiotic Claims
19

Patient Demographics

Average Patient Age
66.7 years
Avg HCC Risk Score
1.52
Gender Split
56% female / 44% male
Age Distribution
<65: 36, 65-74: 81, 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 CARL BERG, 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
Atorvastatin Calcium
212
Gabapentin
136
Amlodipine Besylate
115
Lisinopril
113
Losartan Potassium
102
Metformin Hcl
84
Glipizide Er
Glipizide
68
Albuterol Sulfate Hfa
Albuterol Sulfate
65
Trazodone Hcl
60
Jardiance
Empagliflozin
58

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

Physician Assistant Overview

How CARL BERG, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

CARL BERG, PA-C's 2,429 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Texas

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

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

Frequently Asked Questions

What is CARL BERG, PA-C's specialty?
CARL BERG, PA-C specializes in Physician Assistant and practices in BASTROP, Texas. Credentials: PA-C.
How much does CARL BERG, PA-C prescribe under Medicare Part D?
In 2023, CARL BERG, PA-C wrote 2,429 Medicare Part D claims totaling $245K in drug costs for 136 beneficiaries.
Where is CARL BERG, PA-C located?
CARL BERG, PA-C is located at 605 OLD AUSTIN HWY, BASTROP, TX, 78602. Phone: (877) 800-5722.
What is CARL BERG, PA-C's NPI number?
CARL BERG, PA-C's National Provider Identifier (NPI) is 1659396398, issued on 07/13/2006.
Does CARL BERG, PA-C prescribe more brand-name or generic drugs?
CARL BERG, PA-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $204K in brand drug costs.
Does CARL BERG, PA-C prescribe opioids?
Yes, CARL BERG, PA-C had 16 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does CARL BERG, PA-C prescribe most often?
Based on 2023 Medicare Part D data, CARL BERG, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CARL BERG, PA-C accept Medicare?
CARL BERG, PA-C appears in CMS Medicare data with 2,429 Part D claims and 136 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CARL BERG, PA-C's credentials?
CARL BERG, PA-C's NPI is 1659396398 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