Dr. Christopher W. Lay , MD
Internal Medicine • Palm Harbor, FL
4705 Alt 19 Ste B
Palm Harbor, FL 34683
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. Christopher Lay is listed in NPPES under Internal Medicine.
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NPI assigned on June 24, 2006; this date does not establish years in practice.
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Published CMS data list 313 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99214 — Established patient outpatient office visit: 158 service units.
- 99213 — Established patient outpatient office visit: 60 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 49 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 2,156 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Rosuvastatin Calcium — 181 prescription fills, including refills.
- Amlodipine Besylate — 153 prescription fills, including refills.
- Levothyroxine Sodium — 122 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 53 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 541 in 2019 to 313 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2023.
Practice Location & Contact Primary Location
4705 Alt 19 Ste B
Palm Harbor, FL 34683
NPPES lists 1 additional practice-address record in Clearwater, FL. 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 $31,870 in 2023
The total amount Medicare approved for these services in 2023. 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, 2023.
Paid by Medicare
About $20,527 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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, 2023.
30-day fills
5,487 standardized 30-day fills in 2023
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
$120,272 in 2023
The total cost of these prescriptions in 2023, 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, 2023.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $19.35 in 2024
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 2024.
NPI first issued
2006
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, “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. Lay 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. Lay 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 Palm Harbor and Florida
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Lay are from 2023.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Lay are from 2023.
35 active clinicians are listed under Internal Medicine with a practice address in Palm Harbor, FL (10,165 in Florida).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Palm Harbor
22.9% of these 35 clinicians have the CMS telehealth indicator.
54.3% of these 35 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 42% from 541 in 2019 to 313 in 2023.
- 2019: 541
- 2020: 728
- 2021: 915
- 2022: 724
- 2023: 313
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Medicare-allowed amount
Medicare-allowed amount decreased 45% from $57,528 in 2019 to $31,870 in 2023.
- 2019: $57,528
- 2020: $75,127
- 2021: $109,151
- 2022: $83,616
- 2023: $31,870
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Paid by Medicare
Paid by Medicare decreased 57% from $48,162 in 2019 to $20,527 in 2023.
- 2019: $48,162
- 2020: $53,243
- 2021: $82,402
- 2022: $60,277
- 2023: $20,527
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 163% from 821 in 2019 to 2,156 in 2023.
- 2019: 821
- 2020: 2,614
- 2021: 3,664
- 2022: 3,955
- 2023: 2,156
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30-day fills
30-day fills increased 272% from 1,474 in 2019 to 5,487 in 2023.
- 2019: 1,474
- 2020: 5,181
- 2021: 8,073
- 2022: 9,497
- 2023: 5,487
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Part D drug cost
Part D drug cost increased 486% from $20,516 in 2019 to $120,272 in 2023.
- 2019: $20,516
- 2020: $129,257
- 2021: $171,602
- 2022: $200,910
- 2023: $120,272
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $402.33 in 2020 to $19.35 in 2024.
- 2020: $402.33
- 2021: $773.99
- 2022: $1,204.21
- 2023: $910.51
- 2024: $19.35
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2023), CMS Open Payments (2024), 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 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $19.35.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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FREESTYLE LIBRE 3 | General | $19.35 |
Source: CMS Open Payments, program year 2024, 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 2016–2022 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, 2017–2023; 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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158 | 119 | $379.72 | $123.11 |
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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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60 | 60 | $268.13 | $89.38 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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49 | 49 | $382.80 | $127.19 |
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G0444
Annual depression screening, 5 to 15 minutes
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46 | 46 | $54.65 | $17.90 |
Source: CMS Part B by Provider and Service, 2023; 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 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Rosuvastatin Calcium | Rosuvastatin Calcium | 181 | 15,141 | $3,422.36 | 74 |
| Amlodipine Besylate | Amlodipine Besylate | 153 | 12,491 | $1,687.40 | 57 |
| Levothyroxine Sodium | Levothyroxine Sodium | 122 | 9,770 | $2,122.95 | 49 |
| Lisinopril | Lisinopril | 99 | 7,580 | $744.92 | 34 |
| Atorvastatin Calcium | Atorvastatin Calcium | 97 | 8,016 | $1,506.99 | 46 |
| Losartan Potassium | Losartan Potassium | 93 | 8,100 | $1,841.09 | 42 |
| Metformin Hcl | Metformin Hcl | 87 | 7,412 | $1,081.46 | 32 |
| Tamsulosin Hcl | Tamsulosin Hcl | 77 | 6,973 | $1,282.97 | 31 |
| Omeprazole | Omeprazole | 70 | 5,167 | $1,115.80 | 26 |
| Trazodone Hcl | Trazodone Hcl | 66 | 3,930 | $581.61 | 24 |
| Carvedilol | Carvedilol | 55 | 4,065 | $854.11 | 16 |
| Metoprolol Succinate | Metoprolol Succinate | 53 | 4,230 | $1,023.74 | 24 |
| Fenofibrate | Fenofibrate | 49 | 3,380 | $1,599.63 | 17 |
| Metoprolol Tartrate | Metoprolol Tartrate | 47 | 3,195 | $457.06 | 17 |
| Gabapentin | Gabapentin | 45 | 2,645 | $1,031.07 | 19 |
| Hydrochlorothiazide | Hydrochlorothiazide | 43 | 3,770 | $179.66 | 16 |
| Simvastatin | Simvastatin | 41 | 3,680 | $551.81 | 16 |
| Alprazolam | Alprazolam | 40 | 1,200 | $342.63 | 13 |
| Escitalopram Oxalate | Escitalopram Oxalate | 40 | 3,420 | $520.27 | 16 |
| Pantoprazole Sodium | Pantoprazole Sodium | 40 | 3,430 | $415.25 | 20 |
| Clopidogrel | Clopidogrel Bisulfate | 34 | 3,110 | $641.81 | 16 |
| Metformin Hcl Er | Metformin Hcl | 33 | 2,130 | $201.05 | — |
| Sertraline Hcl | Sertraline Hcl | 32 | 2,100 | $372.23 | — |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 29 | 2,616 | $2,134.58 | 12 |
| Potassium Chloride | Potassium Chloride | 27 | 2,002 | $369.72 | 13 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2023; 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20100618000172
FL
6204966294
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
3131 N Mcmullen Booth Rd
Clearwater, FL 337612008
Phone: 7277268871
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 - Cardiovascular Disease
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Medicine (M.D.)
Surgery
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 4705 ALT 19 STE B, PALM HARBOR, FL 34683 (Tel: 7279356477)
Registered at 4705 ALT 19 STE B, PALM HARBOR, FL 346831424 (Tel: 7279356477)
NPI status registered as active in NPPES database
Registered at 3131 N MCMULLEN BOOTH RD, CLEARWATER, FL 337612008 (Tel: 7277268871)
Registered at 3131 N MCMULLEN BOOTH RD, CLEARWATER, FL 337612008 (Tel: 7277268871)
Recorded as CHRISTOPHER LAY, M.D.
Internal Medicine (license number reported to NPPES: FL ME83837)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Palm Harbor
- Dr. Hans Langschwager, MD
- Dr. Linda Diedriech, MD
- Dr. Svetlana Enman, DO
- Dr. John Isaak, MD
- Dr. Jose Esteves, MD
- Dr. Lauren Holderith, MD
Mailing Address
4705 Alt 19 Ste B
Palm Harbor, FL 346831424
Phone: 7279356477