Dr. Charissa Lateesha Geyer , MD
Internal Medicine โข Kettering, OH
3535 Southern Blvd
Kettering, OH 45429
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. Charissa Geyer is listed in NPPES under Internal Medicine.
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NPI assigned on March 28, 2013; this date does not establish years in practice.
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Published CMS data list 164 Original Medicare Part B services in 2021.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021. Published rows only; this is not a quality measure.
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Published Part B service records, 2021:
- 99233 โ Subsequent hospital care with moderate levelof medical decision making: 83 service units.
- 99239 โ Hospital discharge day management: 36 service units.
- 99217 โ Hospital observation care on day of discharge: 24 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2020 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2021). CPT notice
See all 4 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 144 Medicare Part D prescriptions, including refills, in 2020.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2020. Published rows only; this is not a quality measure.
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Published Part D records, 2020:
- Prednisone โ 17 prescription fills, including refills.
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) โ 17 prescription fills, including refills.
- Furosemide โ 15 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2020. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 11 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 823 in 2017 to 164 in 2021.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2017โ2021.
Practice Location & Contact Primary Location
3535 Southern Blvd
Kettering, OH 45429
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 Middletown, OH. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $17,524 in 2021
The total amount Medicare approved for these services in 2021. 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 โ by Provider and Service, 2021.
Paid by Medicare
About $13,402 in 2021
The part of the Medicare-allowed amount that Medicare itself paid in 2021, 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 โ by Provider and Service, 2021.
30-day fills
151 standardized 30-day fills in 2020
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
$977 in 2020
The total cost of these prescriptions in 2020, 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 โ by Provider and Drug, 2020.
Open Payments general payments, program year 2025
All general payments: $63.55 across 3 records.
By nature of payment
- Food and Beverage: $63.55 across 3 records.
Reporting-company totals
- Gilead Sciences, Inc.: $63.55 across 3 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2013
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, โDoes your provider accept Medicare as full payment?โ
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. Geyer 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. Geyer 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 Kettering and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Geyer are from 2021.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Geyer are from 2020.
36 active clinicians are listed under Internal Medicine with a practice address in Kettering, OH (5,283 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Kettering
25% of these 36 clinicians have the CMS telehealth indicator.
50% of these 36 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 decreased 80% from 823 in 2017 to 164 in 2021.
- 2017: 823
- 2018: 566
- 2019: 729
- 2020: 769
- 2021: 164
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Medicare-allowed amount
Medicare-allowed amount decreased 79% from $84,784 in 2017 to $17,524 in 2021.
- 2017: $84,784
- 2018: $57,881
- 2019: $79,543
- 2020: $81,749
- 2021: $17,524
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Paid by Medicare
Paid by Medicare decreased 80% from $67,272 in 2017 to $13,402 in 2021.
- 2017: $67,272
- 2018: $44,898
- 2019: $63,065
- 2020: $64,277
- 2021: $13,402
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 33% from 216 in 2016 to 144 in 2020.
- 2016: 216
- 2017: 198
- 2018: 95
- 2019: 57
- 2020: 144
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30-day fills
30-day fills decreased 31% from 218 in 2016 to 151 in 2020.
- 2016: 218
- 2017: 200
- 2018: 95
- 2019: 57
- 2020: 151
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Part D drug cost
Part D drug cost decreased 42% from $1,676 in 2016 to $977 in 2020.
- 2016: $1,676
- 2017: $1,778
- 2018: $595
- 2019: $342
- 2020: $977
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $23.59 in 2019 to $63.55 in 2025.
- 2019: $23.59
- 2025: $63.55
Sources: CMS Medicare Physician & Other Practitioners (2021), CMS Medicare Part D Prescribers (2020), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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 โ December 31, 2025): fewer than 11 records totaling $63.55.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
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Trodelvy | General | $25.13 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
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Trodelvy | General | $19.72 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
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Trodelvy | General | $18.70 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2020 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 โ by Provider and Service data, 2017โ2021; 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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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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83 | 51 | $155.00 | $102.28 |
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99239
Hospital discharge day management, more than 30 minutes
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36 | 36 | $180.00 | $104.83 |
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99217
Hospital observation care on day of discharge
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24 | 24 | $120.00 | $68.44 |
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99220
Hospital observation care, typically 70 minutes
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21 | 21 | $270.00 | $172.31 |
Source: CMS Part B by Provider and Service, 2021; 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 2020.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 17 | 173 | $75.51 | 17 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 17 | 127 | $273.13 | 17 |
| Furosemide | Furosemide | 15 | 405 | $57.60 | 14 |
| Metoprolol Tartrate | Metoprolol Tartrate | 14 | 380 | $44.76 | 14 |
| Lisinopril | Lisinopril | 13 | 390 | $33.69 | 13 |
| Atorvastatin Calcium | Atorvastatin Calcium | 12 | 480 | $115.17 | 12 |
| Cefuroxime | Cefuroxime Axetil | 12 | 56 | $133.85 | 12 |
| Levofloxacin | Levofloxacin | 11 | 70 | $65.08 | 11 |
| Amlodipine Besylate | Amlodipine Besylate | 11 | 327 | $41.11 | 11 |
| Carvedilol | Carvedilol | 11 | 224 | $54.40 | โ |
| Pantoprazole Sodium | Pantoprazole Sodium | 11 | 395 | $82.52 | 11 |
Source: CMS Part D by Provider and Drug, 2020; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC 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.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20161005002896
OH
6800020850
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
1 Medical Center Dr
Middletown, OH 450052584
Phone: 5137054754
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Student in an Organized Health Care Education/Training Program
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Emergency 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 3535 SOUTHERN BLVD, KETTERING, OH 45429 (Tel: 9373846800)
Student in an Organized Health Care Education/Training Program
NPI status registered as active in NPPES database
Registered at 3535 SOUTHERN BLVD, KETTERING, OH 454291221 (Tel: 9373846800)
Registered at 2200 PHILADELPHIA DR, # 441, DAYTON, OH 454061840 (Tel: 9373846800)
Recorded as CHARISSA GEYER, MD
Internal Medicine (license number reported to NPPES: OH 35127485)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Kettering
- Dr. Carlos Ventura, MD
- Dr. Katherine House, DO
- Ali Kardan
- Dr. Lothar Gebauer, MD
- Dr. Ruchi Bisen, MD
- Dr. Rebecca Ramirez, MD
Mailing Address
2200 Philadelphia Dr, # 441
Dayton, OH 454061840
Phone: 9373846800