2026 NPPES data Family Medicine Physician NPI 1427163492 DO
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Terence Grogan, DO

Family Medicine Physician in Indianapolis, Indiana. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,640 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
12K
Medicare Part D claims · 592 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
22.2/100
▼ 61 pts below national avg 83.1 · Below average
Industry payments
$422.39
23 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Terence Grogan, DO reported a CMS MIPS final score of 22.2/100 - below the 83.1 national average - and filed 11,641 Medicare Part D claims in 2023.

22.2/100
MIPS score · -61 vs avg
12K
Part D claims, 2023
89%
generic prescribing
Likely
board-certified (heuristic)

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.

Terence Grogan, DO's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

22 3rd percentile higher than 3% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). This entry sits in this band. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Terence Grogan, DO sits

This provider among family medicine physician peers

Across the 22,040 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Terence Grogan, DO writes more Part D claims than 92% of them and scores higher on MIPS quality than 3% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Terence Grogan, DO-Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 3
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Terence Grogan, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Terence Grogan, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Terence Grogan, DO?

Below national average

NPI registry status

Active

Issued 08/20/2006

NPI 1427163492

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

11,641 241% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

MIPS final score

22.2/100 60.9 pts vs avg

Below average band

vs 83.1 national avg

Specialty distribution in Indiana

How Family Medicine Physician compares to other specialties among Indiana providers

Indiana providers
Behavior Technician - 13.6%Behavior Technician13.6%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Pharmacist - 4.3%Pharmacist4.3%Family Nurse Practitioner - 4.2%Family Nurse Practitioner4.2%Clinical Social Worker - 4.2%Clinical Social Worker4.2%Mental Health Counselor - 4.1%Mental Health Counselor4.1%Family Medicine Physician - 2.8%Family Medicine Physician2.8%
Largest specialties in Indiana (% of in-state providers)

Medicare quality performance, MIPS

Terence Grogan, DO's 2023 MIPS final score plotted against the Family Medicine Physician national average

Below national average
MIPS Final Score
22.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Family Medicine Physician) - 22.2/100 vs national avg 83.1

0%100%National avg83%22.2%
MIPS final score (Family Medicine Physician) - 22.2/100 vs national avg 83.1

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).

Terence Grogan, DO appears in the CMS NPPES registry as a Family Medicine Physician provider holding DO credentials at 426 S ALABAMA ST STE 100, Indianapolis, IN, 46225, with a listed phone of (317) 528-2489. NPI 1427163492 was issued on 08/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Grogan 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 11,641 prescription claims written by this provider, covering 592 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 10% brand-name and 89% generic by claim count, with an opioid prescribing rate of 6.8%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 22.2/100 for the 2023 performance year (Quality 0, Cost 74), compared with the national average of 83.1.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

426 S ALABAMA ST STE 100
Indianapolis, IN 46225

Provider Details

NPI 1427163492
Specialty Family Medicine Physician
Credentials DO
Gender Male
NPI Issued 08/20/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

22.1891
Final Score
Avg: 83.1
0
Quality
73.9638
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where Terence Grogan, DO 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.

Centerstone Health Services Inc
Connersville, IN

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 Terence Grogan, DO. Source: openpaymentsdata.cms.gov.

Total received

$422

Largest payer

AstraZeneca Pharmaceuticals LP

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

Terence Grogan, DO - brand share 10.0%
Family Medicine Physician average

10% brand-name claims vs 89% generic, on 11,641 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.

11,641
Total Claims
$1.2M
Total Drug Cost
592
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
24,143
Total Day Supply
693,348
Brand vs Generic
10% brand / 89% generic
Brand Drug Cost
$923K
Generic Drug Cost
$251K
Opioid Claims
797 (6.8% rate)
Antibiotic Claims
441

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.28
Gender Split
53% female / 47% male
Age Distribution
<65: 105, 65-74: 255, 75-84: 171, 85+: 61

Top Prescribed Drugs (Medicare Part D)

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

What Terence Grogan, DO 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
423
Lisinopril
420
Atorvastatin Calcium
399
Alprazolam
394
Amlodipine Besylate
349
Omeprazole
304
Gabapentin
300
Metformin Hcl
285
Albuterol Sulfate Hfa
Albuterol Sulfate
271
Levothyroxine Sodium
257

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

Family Medicine Physician Overview

How Terence Grogan, DO fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

Terence Grogan, DO's 11,641 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Indiana

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Indiana medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Terence Grogan, DO's specialty?
Terence Grogan, DO specializes in Family Medicine Physician and practices in Indianapolis, Indiana. Credentials: DO.
How much does Terence Grogan, DO prescribe under Medicare Part D?
In 2023, Terence Grogan, DO wrote 11,641 Medicare Part D claims totaling $1.2M in drug costs for 592 beneficiaries.
What is Terence Grogan, DO's Medicare quality score?
Terence Grogan, DO has a CMS MIPS Final Score of 22.2/100 (Quality: 0, Cost: 74). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Terence Grogan, DO located?
Terence Grogan, DO is located at 426 S ALABAMA ST STE 100, Indianapolis, IN, 46225. Phone: (317) 528-2489.
What is Terence Grogan, DO's NPI number?
Terence Grogan, DO's National Provider Identifier (NPI) is 1427163492, issued on 08/20/2006.
Does Terence Grogan, DO prescribe more brand-name or generic drugs?
Terence Grogan, DO's prescribing is 10% brand-name and 89% generic drugs by claim count, with $923K in brand drug costs.
Does Terence Grogan, DO prescribe opioids?
Yes, Terence Grogan, DO had 797 opioid claims in 2023 with an opioid prescribing rate of 6.8%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Terence Grogan, DO prescribe most often?
Based on 2023 Medicare Part D data, Terence Grogan, DO's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Lisinopril, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Terence Grogan, DO accept Medicare?
Terence Grogan, DO appears in CMS Medicare data with 11,641 Part D claims and 592 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Terence Grogan, DO's credentials?
Terence Grogan, DO's NPI is 1427163492 with credentials DO. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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

Compiled from official public sources by the PlainDoctor editorial team.