2026 NPPES data Physician Assistant NPI 1083018667 P.A.
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MACI HOBBY, P.A.

Physician Assistant in SAVANNAH, Georgia. 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
433
Medicare Part D claims · 88 beneficiaries · Physician Assistant avg: 790
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$778.5
32 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MACI HOBBY, P.A. filed 433 Medicare Part D claims in 2023 as a Physician Assistant in SAVANNAH, Georgia, prescribing 83% generic.

433
Part D claims, 2023
83%
generic prescribing
$778.5
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.

MACI HOBBY, P.A.'s Medicare Part D volume vs every U.S. prescriber

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

433 Top 38% higher than 62% 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%). This entry sits in this band. 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 MACI HOBBY, P.A.?

Quality data not reported

NPI registry status

Active

Issued 10/10/2014

NPI 1083018667

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

433 45% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Georgia

How Physician Assistant compares to other specialties among Georgia providers

Georgia providers

Physician Assistant share within Georgia

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

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).

MACI HOBBY, P.A. appears in the CMS NPPES registry as a Physician Assistant provider holding P.A. credentials at 5 EXECUTIVE CIR, SAVANNAH, GA, 31406, with a listed phone of (912) 691-1533. NPI 1083018667 was issued on 10/10/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HOBBY 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 433 prescription claims written by this provider, covering 88 Medicare beneficiaries and totaling roughly $65K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 3.0%. 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

5 EXECUTIVE CIR
SAVANNAH, GA 31406

Provider Details

NPI 1083018667
Specialty Physician Assistant
Credentials P.A.
Gender Female
NPI Issued 10/10/2014

Hospital and facility affiliations

Facilities where MACI HOBBY, P.A. 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.

NEPHROLOGY AND HYPERTENSION MEDICAL ASSOCIATES PC
SAVANNAH, GA

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 MACI HOBBY, P.A.. Source: openpaymentsdata.cms.gov.

Total received

$779

Largest payer

Ardelyx, Inc.

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 · Typical

MACI HOBBY, P.A. — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 433 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.

433
Total Claims
$65K
Total Drug Cost
88
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
657
Total Day Supply
16,840
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$47K
Generic Drug Cost
$18K
Opioid Claims
13 (3.0% rate)
Antibiotic Claims
37

Patient Demographics

Average Patient Age
66.9 years
Avg HCC Risk Score
8.04
Gender Split
49% female / 51% male
Age Distribution
<65: 36, 65-74: 25, 75-84: 16, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What MACI HOBBY, P.A. 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
Ondansetron Odt
Ondansetron
26
Calcium Acetate
20
Losartan Potassium
19
Furosemide
17
Gabapentin
17
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
15
Sevelamer Carbonate
15
Prosol
Parenteral Amino Acid 20% No.1
12
Doxepin Hcl
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 MACI HOBBY, P.A. fits within the Physician Assistant landscape nationally.

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

MACI HOBBY, P.A.'s 433 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Georgia

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

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

Frequently Asked Questions

What is MACI HOBBY, P.A.'s specialty?
MACI HOBBY, P.A. specializes in Physician Assistant and practices in SAVANNAH, Georgia. Credentials: P.A..
How much does MACI HOBBY, P.A. prescribe under Medicare Part D?
In 2023, MACI HOBBY, P.A. wrote 433 Medicare Part D claims totaling $65K in drug costs for 88 beneficiaries.
Where is MACI HOBBY, P.A. located?
MACI HOBBY, P.A. is located at 5 EXECUTIVE CIR, SAVANNAH, GA, 31406. Phone: (912) 691-1533.
What is MACI HOBBY, P.A.'s NPI number?
MACI HOBBY, P.A.'s National Provider Identifier (NPI) is 1083018667, issued on 10/10/2014.
Does MACI HOBBY, P.A. prescribe more brand-name or generic drugs?
MACI HOBBY, P.A.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $47K in brand drug costs.
Does MACI HOBBY, P.A. prescribe opioids?
Yes, MACI HOBBY, P.A. had 13 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
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 MACI HOBBY, P.A. prescribe most often?
Based on 2023 Medicare Part D data, MACI HOBBY, P.A.'s most frequently prescribed drugs include Ondansetron Odt, Calcium Acetate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MACI HOBBY, P.A. accept Medicare?
MACI HOBBY, P.A. appears in CMS Medicare data with 433 Part D claims and 88 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MACI HOBBY, P.A.'s credentials?
MACI HOBBY, P.A.'s NPI is 1083018667 with credentials P.A.. 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