2026 NPPES data Physician Assistant NPI 1104927748 PA-C
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ANN-MARIE COBB, PA-C

Physician Assistant in LAPLATA, Maryland. 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
352
Medicare Part D claims · 50 beneficiaries · Physician Assistant avg: 790
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$5.0K
71 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ANN-MARIE COBB, PA-C filed 352 Medicare Part D claims in 2023 as a Physician Assistant in LAPLATA, Maryland, prescribing 75% generic.

352
Part D claims, 2023
75%
generic prescribing
$5.0K
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.

ANN-MARIE COBB, PA-C's Medicare Part D volume vs every U.S. prescriber

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

352 Top 43% higher than 57% 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 ANN-MARIE COBB, PA-C?

Quality data not reported

NPI registry status

Active

Issued 09/26/2006

NPI 1104927748

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

352 55% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Maryland

How Physician Assistant compares to other specialties among Maryland providers

Maryland providers

Physician Assistant share within Maryland

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

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).

ANN-MARIE COBB, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 701 EAST CHARLES STREET, LAPLATA, MD, 20646, with a listed phone of (301) 609-4520. NPI 1104927748 was issued on 09/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COBB 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 352 prescription claims written by this provider, covering 50 Medicare beneficiaries and totaling roughly $107K in drug spend, split 25% brand-name and 75% generic by claim count. 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

701 EAST CHARLES STREET
LAPLATA, MD 20646

Provider Details

NPI 1104927748
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 09/26/2006

Hospital and facility affiliations

Facilities where ANN-MARIE COBB, 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.

KIDNEY MEDICAL ASSOCIATES INC
WHITE PLAINS, MD
MDICS AT CIVISTA LLC
LA PLATA, MD

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

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 ANN-MARIE COBB, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$5.0K

Largest payer

Novartis Pharmaceuticals Corporation

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.

Brand vs generic prescribing mix · Above average

ANN-MARIE COBB, PA-C — brand share 25.0%
Specialty average (est.)

25% brand-name claims vs 75% generic, on 352 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.

352
Total Claims
$107K
Total Drug Cost
50
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
748
Total Day Supply
21,929
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$98K
Generic Drug Cost
$10K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
75.1 years
Avg HCC Risk Score
2.03
Gender Split
58% female / 42% male

Top Prescribed Drugs (Medicare Part D)

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

What ANN-MARIE COBB, 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
Rayaldee
Calcifediol
30
Lisinopril
28
Furosemide
19
Losartan Potassium
19
Amlodipine Besylate
16
Metoprolol Tartrate
14
Calcitriol
12
Farxiga
Dapagliflozin Propanediol
11

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

Physician Assistant Overview

How ANN-MARIE COBB, 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

ANN-MARIE COBB, PA-C's 352 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Maryland

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

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

Frequently Asked Questions

What is ANN-MARIE COBB, PA-C's specialty?
ANN-MARIE COBB, PA-C specializes in Physician Assistant and practices in LAPLATA, Maryland. Credentials: PA-C.
How much does ANN-MARIE COBB, PA-C prescribe under Medicare Part D?
In 2023, ANN-MARIE COBB, PA-C wrote 352 Medicare Part D claims totaling $107K in drug costs for 50 beneficiaries.
Where is ANN-MARIE COBB, PA-C located?
ANN-MARIE COBB, PA-C is located at 701 EAST CHARLES STREET, LAPLATA, MD, 20646. Phone: (301) 609-4520.
What is ANN-MARIE COBB, PA-C's NPI number?
ANN-MARIE COBB, PA-C's National Provider Identifier (NPI) is 1104927748, issued on 09/26/2006.
Does ANN-MARIE COBB, PA-C prescribe more brand-name or generic drugs?
ANN-MARIE COBB, PA-C's prescribing is 25% brand-name and 75% generic drugs by claim count, with $98K in brand drug costs.
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 ANN-MARIE COBB, PA-C prescribe most often?
Based on 2023 Medicare Part D data, ANN-MARIE COBB, PA-C's most frequently prescribed drugs include Rayaldee, Lisinopril, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANN-MARIE COBB, PA-C accept Medicare?
ANN-MARIE COBB, PA-C appears in CMS Medicare data with 352 Part D claims and 50 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANN-MARIE COBB, PA-C's credentials?
ANN-MARIE COBB, PA-C's NPI is 1104927748 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