Dr. Jonathan F Marsh , MD
Internal Medicine • Carmel, IN
13450 N Meridian St Ste 363
Carmel, IN 460327120
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Jonathan Marsh is listed in NPPES under Internal Medicine.
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NPI assigned on November 29, 2005; this date does not establish years in practice.
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Published CMS data list 2,493 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 664 service units.
- 36415 — Insertion of needle into vein for collection of blood sample: 637 service units.
- 99497 — Advance care planning: 390 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 14 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 11,540 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Rosuvastatin Calcium — 702 prescription fills, including refills.
- Atorvastatin Calcium — 604 prescription fills, including refills.
- Levothyroxine Sodium — 537 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 157 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Carmel, IN (2024, 39 clinicians with data). Median for this group: 613. Middle half: 311 to 1,099.
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Indiana (2024, 1,300 clinicians with data). Median for this group: 621. Middle half: 290 to 1,192.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,958 in 2020 to 2,493 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
13450 N Meridian St Ste 363
Carmel, IN 460327120
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Indianapolis, IN. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: St Vincent Medical Group Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Indiana University School Of Medicine
2002
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
468 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $212,640 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $175,184 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
27,069 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$1,275,725 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $23.49 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
Years since graduation
24 years (graduated 2002)
CMS Doctors and Clinicians data list 2002 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Marsh has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Marsh as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Carmel and Indiana
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Carmel, IN (2024, 39 clinicians with data). Median for this group: 613. Middle half: 311 to 1,099.
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Indiana (2024, 1,300 clinicians with data). Median for this group: 621. Middle half: 290 to 1,192.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Carmel, IN (2024, 39 clinicians with data). Median for this group: $57,794. Middle half: $34,280 to $103,895.
A higher Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Indiana (2024, 1,300 clinicians with data). Median for this group: $58,777. Middle half: $29,164 to $106,567.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Carmel, IN (2024, 39 clinicians with data). Median for this group: $44,234. Middle half: $25,007 to $83,075.
A higher Medicare payment amount than 90% of clinicians listed under Internal Medicine in Indiana (2024, 1,300 clinicians with data). Median for this group: $44,962. Middle half: $22,321 to $82,584.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Carmel, IN (2024, 50 clinicians with data). Median for this group: 1,452. Middle half: 113 to 4,749.
More Part D prescriptions than 90% of clinicians listed under Internal Medicine in Indiana (2024, 1,385 clinicians with data). Median for this group: 372. Middle half: 78 to 5,769.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Internal Medicine in Carmel, IN (2024, 50 clinicians with data). Median for this group: $132,633. Middle half: $3,598 to $419,993.
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Indiana (2024, 1,385 clinicians with data). Median for this group: $28,423. Middle half: $931 to $476,184.
69 active clinicians are listed under Internal Medicine with a practice address in Carmel, IN (2,138 in Indiana).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Carmel
27.5% of these 69 clinicians have the CMS telehealth indicator.
58% of these 69 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 27% from 1,958 in 2020 to 2,493 in 2024.
- 2020: 1,958
- 2021: 2,179
- 2022: 2,205
- 2023: 1,932
- 2024: 2,493
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Medicare-allowed amount
Medicare-allowed amount increased 73% from $122,674 in 2020 to $212,640 in 2024.
- 2020: $122,674
- 2021: $167,256
- 2022: $176,982
- 2023: $179,661
- 2024: $212,640
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Paid by Medicare
Paid by Medicare increased 78% from $98,430 in 2020 to $175,184 in 2024.
- 2020: $98,430
- 2021: $132,049
- 2022: $140,741
- 2023: $146,784
- 2024: $175,184
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 10,641 in 2020 and 11,540 in 2024.
- 2020: 10,641
- 2021: 10,494
- 2022: 10,749
- 2023: 10,936
- 2024: 11,540
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30-day fills
30-day fills increased 10% from 24,524 in 2020 to 27,069 in 2024.
- 2020: 24,524
- 2021: 24,737
- 2022: 25,145
- 2023: 25,504
- 2024: 27,069
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Part D drug cost
Part D drug cost increased 57% from $813,750 in 2020 to $1,275,725 in 2024.
- 2020: $813,750
- 2021: $827,184
- 2022: $902,420
- 2023: $1,105,541
- 2024: $1,275,725
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $475.06 in 2019 to $23.49 in 2025.
- 2019: $475.06
- 2025: $23.49
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $23.49.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Rybelsus | General | $23.49 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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664 | 426 | $170.00 | $118.69 |
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36415
Insertion of needle into vein for collection of blood sample
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637 | 389 | $20.00 | $8.59 |
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99497
Advance care planning, first 30 minutes
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390 | 390 | $205.00 | $76.04 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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366 | 366 | $165.00 | $119.95 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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112 | 87 | $230.00 | $167.29 |
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90677
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
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73 | 73 | $349.11 | $283.20 |
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G0009
Administration of pneumococcal vaccine
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73 | 73 | $25.00 | $24.18 |
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90662
Influenza vaccine split virus, preservative free
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37 | 37 | $93.92 | $80.75 |
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G0008
Administration of influenza virus vaccine
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37 | 37 | $25.00 | $24.50 |
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G0180
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
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29 | 20 | $91.00 | $49.44 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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27 | 27 | $120.00 | $83.78 |
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G0438
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
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19 | 19 | $245.00 | $153.27 |
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G0402
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
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17 | 17 | $170.00 | $152.79 |
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69210
Removal of impacted ear wax
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12 | 11 | $172.50 | $43.79 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Rosuvastatin Calcium | Rosuvastatin Calcium | 702 | 61,167 | $7,126.83 | 202 |
| Atorvastatin Calcium | Atorvastatin Calcium | 604 | 51,382 | $4,381.43 | 163 |
| Levothyroxine Sodium | Levothyroxine Sodium | 537 | 46,223 | $4,869.48 | 137 |
| Amlodipine Besylate | Amlodipine Besylate | 373 | 31,751 | $1,752.96 | 101 |
| Mounjaro | Tirzepatide | 333 | 9,670 | $344,576.58 | 50 |
| Lisinopril | Lisinopril | 317 | 28,820 | $1,742.72 | 91 |
| Pantoprazole Sodium | Pantoprazole Sodium | 317 | 26,060 | $3,690.65 | 88 |
| Tamsulosin Hcl | Tamsulosin Hcl | 275 | 23,688 | $4,716.50 | 84 |
| Trazodone Hcl | Trazodone Hcl | 270 | 19,037 | $2,085.61 | 73 |
| Losartan Potassium | Losartan Potassium | 268 | 23,163 | $2,266.89 | 75 |
| Jardiance | Empagliflozin | 246 | 13,162 | $254,364.81 | 42 |
| Omeprazole | Omeprazole | 234 | 18,935 | $3,384.82 | 61 |
| Gabapentin | Gabapentin | 218 | 11,469 | $4,565.84 | 52 |
| Simvastatin | Simvastatin | 214 | 18,650 | $1,772.39 | 58 |
| Escitalopram Oxalate | Escitalopram Oxalate | 206 | 16,654 | $2,665.75 | 53 |
| Metoprolol Succinate | Metoprolol Succinate | 197 | 17,047 | $2,380.36 | 58 |
| Hydrochlorothiazide | Hydrochlorothiazide | 186 | 16,976 | $839.62 | 52 |
| Metformin Hcl Er | Metformin Hcl | 167 | 14,025 | $1,234.35 | 49 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 165 | 3,645 | $4,893.91 | 33 |
| Valsartan | Valsartan | 164 | 14,032 | $4,678.57 | 50 |
| Duloxetine Hcl | Duloxetine Hcl | 151 | 12,035 | $3,482.98 | 42 |
| Potassium Chloride | Potassium Chloride | 145 | 10,576 | $2,088.36 | 42 |
| Allopurinol | Allopurinol | 144 | 12,960 | $1,025.18 | 41 |
| Furosemide | Furosemide | 131 | 9,245 | $809.11 | 44 |
| Sertraline Hcl | Sertraline Hcl | 124 | 9,207 | $1,862.95 | 29 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-04-27NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20050913001162
IN
4284667940
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
St Vincent Medical Group Inc
13450 N Meridian St, Carmel, IN 460327120
Phone: 3175828315
St Vincent Medical Group Inc
8433 Harcourt Rd, Indianapolis, IN 462602193
Phone: 3175837600
St Vincent Medical Group Inc
13400 N Meridian St, Carmel, IN 460327103
St Vincent Medical Group Inc
250 W 96th St, Indianapolis, IN 462601317
St Vincent Medical Group Inc
13420 N Meridian St, Carmel, IN 460321581
St Vincent Medical Group Inc
8330 Naab Rd, Indianapolis, IN 462602279
Phone: 3174156500
St Vincent Medical Group Inc
13400 N Meridian St, Carmel, IN 460327102
Phone: 3175828600
Secondary Practice Locations
8330 Naab Rd Ste 340
Indianapolis, IN 462602279
Phone: 3174156230
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 13450 N MERIDIAN ST STE 363, CARMEL, IN 460327120 (Tel: 3175828315)
Additional practice office at 8330 Naab Rd Ste 340, Indianapolis, IN 462602279
Registered at 8330 NAAB RD STE 340, INDIANAPOLIS, IN 462602279 (Tel: 3174156230)
Registered at 8330 NAAB RD STE 340, INDIANAPOLIS, IN 462602279
Registered at 9240 N MERIDIAN ST STE 160, INDIANAPOLIS, IN 462601827
Registered at 250 W 96TH ST # 520, INDIANAPOLIS, IN 462601316
NPI status registered as active in NPPES database
Registered at 9240 N MERIDIAN ST STE 160, INDIANAPOLIS, IN 462601827 (Tel: 3175742286)
Registered at 8840 COMMERCE PARK PL STE E, INDIANAPOLIS, IN 462683129
Recorded as JONATHAN MARSH, MD
Internal Medicine (license number reported to NPPES: IN 01060873A)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Carmel
- Dr. Olivia Fondoble, MD
- Dr. Elaine Habig, MD
- Dr. Linda Abels, MD
- Dr. Souhaila Richardson, MD
- Dr. Steven Chou, DO
- Dr. Trung Hua, MD
Mailing Address
8330 Naab Rd Ste 340
Indianapolis, IN 462602279