Lydia Anne Martin , APRN, FNP
Nurse Practitioner โข Lewes, DE
34434 King Street Row Ste 4
Lewes, DE 199584987
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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NPI assigned on January 3, 2015; this date does not establish years in practice.
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Published CMS data list 591 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- G2211 โ Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 268 service units.
- 99214 โ Established patient outpatient office visit: 242 service units.
- 99213 โ Established patient outpatient office visit: 44 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 5 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 402 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Amlodipine Besylate โ 55 prescription fills, including refills.
- Sevelamer Carbonate โ 52 prescription fills, including refills.
- Olmesartan Medoxomil โ 43 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 16 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Nurse Practitioner in Lewes, DE (2024, 19 clinicians with data). Median for this group: 678. Middle half: 399 to 1,098.
More Medicare Part B services than 65% of clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: 372. Middle half: 118 to 824.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 329 in 2022 to 591 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022โ2024.
Practice Location & Contact Primary Location
34434 King Street Row Ste 4
Lewes, DE 199584987
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Nephrology Associates Pa. 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
2021
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
302 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 โ by Provider, 2024.
Medicare-allowed amount
About $33,774 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 โ by Provider and Service, 2024.
Paid by Medicare
About $24,061 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 โ by Provider and Service, 2024.
30-day fills
949 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
$300,611 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $842.17 across 41 records.
By nature of payment
- Food and Beverage: $842.17 across 41 records.
Reporting-company totals (3 largest of 14)
- Otsuka America Pharmaceutical, Inc.: $130.57 across 5 records.
- Amgen Inc.: $116.31 across 6 records.
- Eli Lilly and Company: $113.13 across 4 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).
Years since graduation
5 years (graduated 2021)
CMS Doctors and Clinicians data list 2021 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
2015
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, 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)
Lydia Martin 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 Lydia Martin 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 Lewes and Delaware
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Nurse Practitioner in Lewes, DE (2024, 19 clinicians with data). Median for this group: 678. Middle half: 399 to 1,098.
More Medicare Part B services than 65% of clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: 372. Middle half: 118 to 824.
Medicare-allowed amount
A lower Medicare-allowed amount than 70% of clinicians listed under Nurse Practitioner in Lewes, DE (2024, 19 clinicians with data). Median for this group: $53,365. Middle half: $27,964 to $89,312.
Close to the middle for clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: $27,904. Middle half: $10,080 to $59,546.
Paid by Medicare
A lower Medicare payment amount than 70% of clinicians listed under Nurse Practitioner in Lewes, DE (2024, 19 clinicians with data). Median for this group: $40,808. Middle half: $19,673 to $66,304.
Close to the middle for clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: $20,169. Middle half: $7,749 to $44,071.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Nurse Practitioner in Lewes, DE (2024, 25 clinicians with data). Median for this group: 409. Middle half: 118 to 1,718.
Close to the middle for clinicians listed under Nurse Practitioner in Delaware (2024, 238 clinicians with data). Median for this group: 427. Middle half: 115 to 1,455.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Nurse Practitioner in Lewes, DE (2024, 25 clinicians with data). Median for this group: $37,915. Middle half: $3,091 to $300,611.
A higher Part D drug cost than 80% of clinicians listed under Nurse Practitioner in Delaware (2024, 238 clinicians with data). Median for this group: $41,667. Middle half: $2,414 to $216,454.
43 active clinicians are listed under Nurse Practitioner with a practice address in Lewes, DE (547 in Delaware).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lewes
20.9% of these 43 clinicians have the CMS telehealth indicator.
65.1% of these 43 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 80% from 329 in 2022 to 591 in 2024.
- 2022: 329
- 2023: 524
- 2024: 591
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Medicare-allowed amount
Medicare-allowed amount stayed about the same: $32,827 in 2022 and $33,774 in 2024.
- 2022: $32,827
- 2023: $38,605
- 2024: $33,774
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Paid by Medicare
Paid by Medicare stayed about the same: $25,315 in 2022 and $24,061 in 2024.
- 2022: $25,315
- 2023: $29,446
- 2024: $24,061
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 193% from 137 in 2022 to 402 in 2024.
- 2022: 137
- 2023: 517
- 2024: 402
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30-day fills
30-day fills increased 217% from 299 in 2022 to 949 in 2024.
- 2022: 299
- 2023: 1,118
- 2024: 949
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Part D drug cost
Part D drug cost increased 399% from $60,284 in 2022 to $300,611 in 2024.
- 2022: $60,284
- 2023: $359,545
- 2024: $300,611
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $264.32 in 2022 to $842.17 in 2025.
- 2022: $264.32
- 2023: $402.64
- 2024: $400.60
- 2025: $842.17
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 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): 41 records totaling $842.17.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $33.00 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $32.80 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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JYNARQUE | General | $29.08 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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JYNARQUE | General | $28.77 |
| Fresenius USA Marketing, Inc. |
Food and Beverage
In-kind items and services
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VELPHORO | General | $28.55 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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VOYXACT | General | $26.60 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $25.92 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
Kerendia | General | $25.37 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
Kerendia | General | $24.91 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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JYNARQUE | General | $23.96 |
| Apellis Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Empaveli | General | $23.84 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
|
JYNARQUE | General | $22.16 |
| Vifor Pharma, Inc. |
Food and Beverage
In-kind items and services
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Veltassa | General | $21.80 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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โ | General | $21.69 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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UPLIZNA | General | $21.62 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $21.45 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $21.41 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
TAVNEOS | General | $21.10 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
Kerendia | General | $21.05 |
| Vifor Pharma, Inc. |
Food and Beverage
In-kind items and services
|
Veltassa | General | $20.81 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
IBSRELA | General | $20.30 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
TAVNEOS | General | $19.78 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
TAVNEOS | General | $19.67 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
Vanrafia | General | $18.43 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $17.96 |
(top 25 shown)
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 2021โ2023 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, 2022โ2024; 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 |
|---|---|---|---|---|
|
G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
|
268 | 248 | $20.00 | $13.59 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
242 | 223 | $170.00 | $86.28 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
44 | 43 | $120.00 | $65.60 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
22 | 22 | $235.00 | $123.05 |
|
90961
Dialysis services, 2-3 physician visits per month (20 years or older)
|
15 | 13 | $604.00 | $243.92 |
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 |
|---|---|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 55 | 3,844 | $633.40 | 16 |
| Sevelamer Carbonate | Sevelamer Carbonate | 52 | 3,960 | $14,808.50 | 20 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 43 | 2,850 | $452.81 | 16 |
| Velphoro | Sucroferric Oxyhydroxide | 32 | 1,640 | $181,195.47 | โ |
| Bumetanide | Bumetanide | 31 | 2,044 | $1,799.59 | 11 |
| Carvedilol | Carvedilol | 30 | 2,402 | $231.39 | 12 |
| Losartan Potassium | Losartan Potassium | 25 | 2,250 | $234.88 | 13 |
| Allopurinol | Allopurinol | 19 | 1,716 | $126.01 | โ |
| Veltassa | Patiromer Calcium Sorbitex | 18 | 1,141 | $27,786.90 | โ |
| Lidocaine-Prilocaine | Lidocaine/Prilocaine | 17 | 950 | $603.08 | โ |
| Farxiga | Dapagliflozin Propanediol | 16 | 1,080 | $16,470.14 | โ |
| Kerendia | Finerenone | 14 | 1,080 | $22,929.17 | โ |
| Calcitriol | Calcitriol | 13 | 598 | $96.92 | โ |
| Auryxia | Ferric Citrate | 13 | 930 | $32,804.45 | โ |
| Furosemide | Furosemide | 12 | 1,080 | $67.29 | โ |
| Valsartan | Valsartan | 12 | 479 | $370.72 | โ |
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: 2021-10-14NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 163W00000X
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20220114000953
DE
7113319591
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
Nephrology Associates Pa
701 N Clayton St, Wilmington, DE 198053165
Phone: 3024219411
Nephrology Associates Pa
4923 Ogletown Stanton Rd, Newark, DE 197132081
Phone: 3022250451
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 - Nephrology
Doctor of Medicine (M.D.)
Nurse Practitioner
Family Nurse Practitioner (Certified)
Internal Medicine - Nephrology
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 34434 KING STREET ROW STE 4, LEWES, DE 199584987 (Tel: 3023600142)
Registered at 4923 OGLETOWN STANTON RD STE 200, NEWARK, DE 197132081 (Tel: 3022250451)
Recorded as LYDIA MARTIN, APRN, FNP
NPI status registered as active in NPPES database
Registered at 424 SAVANNAH RD, LEWES, DE 199581462 (Tel: 3026453300)
Registered at 424 SAVANNAH RD, LEWES, DE 199581462
Recorded as LYDIA MARTIN
Registered Nurse (license number reported to NPPES: DE L1-0042162)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Lewes
- Patricia Rowley, FNP
- Jessica Riffle, FNP
- Stephen Israel, NP
- Jennifer Willey, FNP-C
- Julie Rollins, CRNP, FNP
- Lauren Trapp, AGACNP-BC
Mailing Address
4923 Ogletown Stanton Rd Ste 200
Newark, DE 197132081
Phone: 3022250451