2026 NPPES data Hospitalist Physician NPI 1497045512
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GREGG ANAZIA

Hospitalist Physician in HATTIESBURG, Mississippi. 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
649
Medicare Part D claims · 255 beneficiaries · Hospitalist Physician avg: 888
Industry payments
$242.45
11 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GREGG ANAZIA is a Hospitalist Physician ([object Object]) practicing in HATTIESBURG, Mississippi with a Medicare Part D prescribing footprint of 649 claims across 255 beneficiaries . Industry payments of $242.45 across 11 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GREGG ANAZIA filed 649 Medicare Part D claims in 2023 across HATTIESBURG, Mississippi. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

GREGG ANAZIA practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

GREGG ANAZIA at a glance

Quality data not reported

NPI registry status

Active

Issued 04/10/2011

NPI 1497045512

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

649 27% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Mississippi

How Hospitalist Physician compares to other specialties among Mississippi providers

Mississippi providers

Hospitalist Physician share within Mississippi

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Mississippi

Specialty board-certification context

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

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

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

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

GREGG ANAZIA is a Hospitalist Physician provider practicing in HATTIESBURG, Mississippi, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1497045512. 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.

GREGG ANAZIA appears in the CMS NPPES registry as a Hospitalist Physician provider at 415 S 28TH AVE, HATTIESBURG, MS, 39401, with a listed phone of (601) 288-4329. NPI 1497045512 was issued on 04/10/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANAZIA 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 649 prescription claims written by this provider, covering 255 Medicare beneficiaries and totaling roughly $61K in drug spend, with an opioid prescribing rate of 3.4%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

415 S 28TH AVE
HATTIESBURG, MS 39401

Provider Details

NPI 1497045512
Specialty Hospitalist Physician
Gender Male
NPI Issued 04/10/2011

Hospital and facility affiliations

Facilities where GREGG ANAZIA 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.

SINGING RIVER GULFPORT
★★☆☆☆ 2/5
GULFPORT, MS
Acute Care Hospitals
CMS CCN: 250123
SINGING RIVER HEALTH SYSTEM
★☆☆☆☆ 1/5
PASCAGOULA, MS
Acute Care Hospitals
CMS CCN: 250040
HATTIESBURG CLINIC PA
HATTIESBURG, MS
PRISMA HEALTH MEDICAL GROUP-MIDLANDS
SUMTER, SC

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 GREGG ANAZIA. Source: openpaymentsdata.cms.gov.

Total received

$242

Largest payer

Boehringer Ingelheim Pharmaceuticals, 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.

Medicare Part D Prescribing Data

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

649
Total Claims
$61K
Total Drug Cost
255
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
747
Total Day Supply
17,161
Generic Drug Cost
$9K
Opioid Claims
22 (3.4% rate)
Antibiotic Claims
129

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
2.28
Gender Split
56% female / 44% male
Age Distribution
<65: 39, 65-74: 92, 75-84: 83, 85+: 41

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pantoprazole Sodium
42
Atorvastatin Calcium
36
Furosemide
30
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
29
Prednisone
28
Levofloxacin
27
Carvedilol
16
Eliquis
Apixaban
15
Gabapentin
15
Doxycycline Monohydrate
14

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

Hospitalist Physician Overview

How GREGG ANAZIA fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

GREGG ANAZIA's 649 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Mississippi

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

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

Frequently Asked Questions

What is GREGG ANAZIA's specialty?
GREGG ANAZIA specializes in Hospitalist Physician and practices in HATTIESBURG, Mississippi.
How much does GREGG ANAZIA prescribe under Medicare Part D?
In 2023, GREGG ANAZIA wrote 649 Medicare Part D claims totaling $61K in drug costs for 255 beneficiaries.
Where is GREGG ANAZIA located?
GREGG ANAZIA is located at 415 S 28TH AVE, HATTIESBURG, MS, 39401. Phone: (601) 288-4329.
What is GREGG ANAZIA's NPI number?
GREGG ANAZIA's National Provider Identifier (NPI) is 1497045512, issued on 04/10/2011.
Does GREGG ANAZIA prescribe opioids?
Yes, GREGG ANAZIA had 22 opioid claims in 2023 with an opioid prescribing rate of 3.4%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does GREGG ANAZIA prescribe most often?
Based on 2023 Medicare Part D data, GREGG ANAZIA's most frequently prescribed drugs include Pantoprazole Sodium, Atorvastatin Calcium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGG ANAZIA accept Medicare?
GREGG ANAZIA appears in CMS Medicare data with 649 Part D claims and 255 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGG ANAZIA's credentials?
GREGG ANAZIA's NPI is 1497045512. 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