ANDI ARNAUTOVIC, MD

NPI 1487795118, individual, Portage, IN, Family Medicine

Evidence tier

structure or single-organization volume

Hours beyond a day in 1 month, but with up to 1698 patients a month across 9 billing organizations, which points to a supervising clinician on the claims rather than one person's hours.
Records needed.

score 51 of 100, rank 8556, $3.0M at stake

Hours billed per day

Medicaid billing converted into hours of hands-on care per day. The lower bound counts one unit per claim line and needs no price; the other two divide dollars by a unit price, the conservative one at 1.5 times the price. The clinician on the claim may be a supervisor under state rules, so billing organizations are counted too.

month	what was found	hours per day, lower bound	hours per day, at price	hours per day, conservative	per working day	patients	billing organizations	codes	paid
Jul 2021	More hours than a day holds, even counting one unit per claim line	27.4	25.8	17.2	24.2	967	5	99203 99212 99213 99214	$120K

National provider registry

From the CMS NPPES Registry, refreshed daily.

Name	ANDI ARNAUTOVIC, MD
Type	Individual
Status	Active
NPI issued	February 8, 2007, last updated August 14, 2020
Practice location	6050 STERLING CREEK RD, Portage, IN 46368-7752, 219-763-8112
Mailing address	PO BOX 1430, Portage, IN 46368-9230
Specialties	Family Medicine (207Q00000X, primary, license 01081299A IN)

Procedures billed

The specific codes behind the dollars. Medicaid figures come from T-MSIS (2018 to 2024) and are compared with every other provider billing the same code; Medicare figures come from the 2024 physician and supplier file and compare this provider's submitted charge with what Medicare allowed, against the usual ratio for that code.

Medicaid, largest codes

code	what it is	paid	share	per patient-month	typical	rank among providers
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	$2.8M	56%	$76	$44 (top 5% from $110)	86th percentile
99212	Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	$800K	16%	$42	$28 (top 5% from $147)	74th percentile
T1015	Medicaid service code	$737K	15%	$14	$182 (top 5% from $488)	3rd percentile
99395	Medicaid service code	$104K	2%	$99	$73 (top 5% from $138)	79th percentile
99203	New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	$103K	2%	$85	$67 (top 5% from $121)	73rd percentile
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	$78K	2%	$104	$60 (top 5% from $133)	87th percentile
99396	Medicaid service code	$64K	1%	$109	$70 (top 5% from $132)	85th percentile
G0467	Federally qualified health center (fqhc) visit, established patient; a medically-necessary, face-to-face encounter (one-on-one) between an established patient and a fqhc practitioner during which time one or more fqhc services are rendered and includes a t	$49K	1%	$35	$20 (top 5% from $124)	76th percentile

Medicare Part B 2024, largest codes

code	what it is	services	beneficiaries	paid	submitted per service	allowed per service	charge to allowed	usual for this code
77067	Screening mammography	17	17	$1K	$643	$83	7.8x	3.5x (90th percentile 6.4x)
83036	Hemoglobin a1c level	29	25	$276	$12	$10	1.3x	3.5x (90th percentile 6.9x)
81003	Automated urinalysis test	18	15	$40	$10	$2	4.5x	4.6x (90th percentile 12.7x)

A submitted charge many times the allowed amount is common and lawful; it matters when it is far above what other providers submit for the same code.

In this area

8 providers in Porter County, IN carry an indicator in the public record, with $29.7M at stake between them. The most common is more hours than a day holds, on 6 of them, followed by part of a provider network on 2.

tier	provider	at stake	why
3	TOGETHER HOMECARE OF NORTHWEST INDIANA LLC Valparaiso, IN, ranked 3025	$0	Part of provider network D1-00107, ranked 107 nationally.
3	VALPARAISO HOME CARE SERVICES, LLC Valparaiso, IN, ranked 6367	$0	Part of provider network D1-00097, ranked 97 nationally.
4	CATHLEEN AMADOR Valparaiso, IN, ranked 8082	$5.7M	Hours beyond a day in 63 months, but with up to 647 patients a month across 4 billing organizations, which points to a supervising clinician on the claims rather than one person's hours. Records needed. and 1 more
4	ANAND POPLI Valparaiso, IN, ranked 8267	$17.3M	Hours beyond a day in 59 months, but with up to 2005 patients a month across 6 billing organizations, which points to a supervising clinician on the claims rather than one person's hours. Records needed.
4	SAMIR GUPTA Valparaiso, IN, ranked 8611	$2.6M	Hours beyond a day in 2 months, but with up to 982 patients a month across 3 billing organizations, which points to a supervising clinician on the claims rather than one person's hours. Records needed.
5	SAJIV JOHN Valparaiso, IN, ranked 9956	$2.2M	Medicaid dollars per patient on code G2067 ($923 per patient-month) sit in the top 5% of every provider billing that code.
5	MARCIA BRIGGS Valparaiso, IN, ranked 10544	$1.7M	89% of Medicaid dollars are on codes with a history of abuse.
5	JAMES BROWN Valparaiso, IN, ranked 11554	$140K

Recent enforcement in IN

All releases

Department of Justice and HHS-OIG releases for this state, newest first. Each opens in a new tab.

DOJSentencedJun 18, 2026

Florida Man Sentenced to 36 Months in Prison

As vice president of a dental practice, he submitted claims to Indiana Medicaid falsely billing for hundreds of dental surgeries that were never performed, used patients' personal identifiers without authorization to support the claims, and committed tax evasion to conceal the income.

DOJSentencedFeb 18, 2026

Highland Physician Sentenced to 97 Months in Prison

Cataldi, sole owner of an otolaryngology practice, billed Medicare and private insurance for thousands of balloon sinuplasty procedures that she did not perform, seeking approximately $50 million and being paid almost $20 million.

DOJCivil settlementJan 28, 2026

Settlement for $1.7 Million With Former Physician Don J. Wagoner and His Business Entity for Fraudulently Billing the Indiana Medicaid Program

Defendants required patients seeking opioid or pain medicine prescriptions to give a single urine sample, tested it with one inexpensive multiplexed screening kit, and billed Indiana Medicaid $171.27 or more per patient by falsely certifying that nine or more separate samples had been collected and analyzed.

DOJSentencedJan 8, 2026

Indiana Woman Sentenced to 84 Months in Prison

Reese falsely claimed to be a licensed clinical psychologist, used forged documents to obtain employment and stole the identities and license numbers of three medical professionals to enroll in Indiana Medicaid and bill for therapy services.

DOJSentencedOct 3, 2024

Merrillville Doctor Sentenced to Prison and Ordered to Pay Restitution

Farley submitted claims to Medicaid and Medicare falsely representing that he had complex, extended visits with patients at his addiction treatment practice, billing for more than 7,000 services he did not provide.

Referral packet

The packet is a draft for a reviewer. It reads every public record behind this case, states what the records show with a citation for each finding, names the regulation each finding relates to, and lists the ordinary explanations to rule out first. It never asserts intent.

Ask this case

Answers come only from the evidence tables, and every sentence cites the record it used.