Dr. Daniel Dean Washburn , MD
Internal Medicine โข Enid, OK
615 E Oklahoma Ave Ste 208
Enid, OK 737015952
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. Daniel Washburn is listed in NPPES under Internal Medicine.
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NPI assigned on August 31, 2005; this date does not establish years in practice.
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Published CMS data list 2,193 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:
- 99214 โ Established patient outpatient office visit: 1,096 service units.
- 83036 โ Hemoglobin a1c level: 253 service units.
- 99309 โ Subsequent nursing facility care with moderate level of medical decision making, per day: 249 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 13 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 9,109 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:
- Levothyroxine Sodium โ 444 prescription fills, including refills.
- Atorvastatin Calcium โ 358 prescription fills, including refills.
- Furosemide โ 251 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 168 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Oklahoma (2024, 607 clinicians with data). Median for this group: 780. Middle half: 366 to 1,551.
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 2,664 in 2020 to 2,193 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
615 E Oklahoma Ave Ste 208
Enid, OK 737015952
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: St Marys Physician Associates Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
University Of Oklahoma College Of Medicine
1976
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
523 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 $216,854 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 $153,102 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
15,980 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
$1,218,220 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $13.95 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.
Years since graduation
50 years (graduated 1976)
CMS Doctors and Clinicians data list 1976 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, CMS release of October 2, 2026.
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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Washburn 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. Washburn 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 Enid and Oklahoma
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Oklahoma (2024, 607 clinicians with data). Median for this group: 780. Middle half: 366 to 1,551.
Too few clinicians listed under Internal Medicine in Enid have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Oklahoma (2024, 607 clinicians with data). Median for this group: $72,331. Middle half: $34,507 to $122,067.
Too few clinicians listed under Internal Medicine in Enid have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Internal Medicine in Oklahoma (2024, 607 clinicians with data). Median for this group: $54,347. Middle half: $25,281 to $94,209.
Too few clinicians listed under Internal Medicine in Enid have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Internal Medicine in Oklahoma (2024, 658 clinicians with data). Median for this group: 590. Middle half: 88 to 5,705.
Too few clinicians listed under Internal Medicine in Enid have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Oklahoma (2024, 658 clinicians with data). Median for this group: $71,971. Middle half: $1,880 to $562,379.
Too few clinicians listed under Internal Medicine in Enid have Medicare Part D data for 2024 to compare.
10 active clinicians are listed under Internal Medicine with a practice address in Enid, OK (1,118 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
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 18% from 2,664 in 2020 to 2,193 in 2024.
- 2020: 2,664
- 2021: 2,430
- 2022: 2,261
- 2023: 2,347
- 2024: 2,193
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Medicare-allowed amount
Medicare-allowed amount increased 11% from $195,209 in 2020 to $216,854 in 2024.
- 2020: $195,209
- 2021: $192,207
- 2022: $182,737
- 2023: $217,193
- 2024: $216,854
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Paid by Medicare
Paid by Medicare increased 12% from $136,377 in 2020 to $153,102 in 2024.
- 2020: $136,377
- 2021: $132,688
- 2022: $125,702
- 2023: $152,417
- 2024: $153,102
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 9,947 in 2020 and 9,109 in 2024.
- 2020: 9,947
- 2021: 9,358
- 2022: 9,111
- 2023: 9,016
- 2024: 9,109
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30-day fills
30-day fills stayed about the same: 17,153 in 2020 and 15,980 in 2024.
- 2020: 17,153
- 2021: 16,432
- 2022: 16,224
- 2023: 15,781
- 2024: 15,980
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Part D drug cost
Part D drug cost increased 32% from $922,432 in 2020 to $1,218,220 in 2024.
- 2020: $922,432
- 2021: $919,962
- 2022: $1,061,416
- 2023: $1,282,691
- 2024: $1,218,220
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $217.40 in 2020 to $13.95 in 2024.
- 2020: $217.40
- 2021: $299.08
- 2022: $296.30
- 2023: $108.09
- 2024: $13.95
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS release of October 2, 2026, 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 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $13.95.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Rybelsus | General | $13.95 |
Source: CMS Open Payments, program year 2024, 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 2016โ2023 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, 2017โ2024; 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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1,096 | 363 | $252.03 | $124.71 |
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83036
Hemoglobin a1c level
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253 | 114 | $19.00 | $9.42 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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249 | 83 | $209.86 | $105.96 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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194 | 65 | $145.00 | $72.93 |
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99307
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes
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113 | 27 | $78.98 | $39.64 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
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68 | 67 | $355.13 | $179.84 |
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G0008
Administration of influenza virus vaccine
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45 | 45 | $34.00 | $29.40 |
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90662
Influenza vaccine split virus, preservative free
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41 | 41 | $110.00 | $81.58 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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41 | 41 | $328.80 | $159.63 |
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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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37 | 30 | $179.81 | $88.96 |
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99348
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes
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26 | 11 | $149.00 | $75.40 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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18 | 18 | $219.00 | $109.48 |
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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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12 | 12 | $355.00 | $176.01 |
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 |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 444 | 29,684 | $5,232.75 | 107 |
| Atorvastatin Calcium | Atorvastatin Calcium | 358 | 21,758 | $4,490.97 | 87 |
| Furosemide | Furosemide | 251 | 12,139 | $1,416.25 | 60 |
| Lisinopril | Lisinopril | 247 | 13,952 | $2,798.62 | 52 |
| Potassium Chloride | Potassium Chloride | 218 | 11,784 | $6,027.16 | 58 |
| Amlodipine Besylate | Amlodipine Besylate | 204 | 11,020 | $2,663.77 | 51 |
| Eliquis | Apixaban | 195 | 4,462 | $89,130.01 | 24 |
| Pantoprazole Sodium | Pantoprazole Sodium | 192 | 9,745 | $3,094.37 | 48 |
| Losartan Potassium | Losartan Potassium | 179 | 11,360 | $2,352.72 | 39 |
| Gabapentin | Gabapentin | 174 | 9,430 | $4,478.29 | 45 |
| Methimazole | Methimazole | 172 | 12,994 | $3,230.05 | 48 |
| Metoprolol Tartrate | Metoprolol Tartrate | 168 | 7,223 | $1,155.25 | 32 |
| Ozempic | Semaglutide | 166 | 6,170 | $185,812.59 | 30 |
| Hydrochlorothiazide | Hydrochlorothiazide | 161 | 10,592 | $996.44 | 41 |
| Omeprazole | Omeprazole | 157 | 8,401 | $2,287.66 | 36 |
| Metformin Hcl Er | Metformin Hcl | 155 | 10,945 | $2,096.76 | 41 |
| Glipizide | Glipizide | 153 | 10,720 | $1,456.51 | 37 |
| Jardiance | Empagliflozin | 146 | 5,960 | $117,203.15 | 24 |
| Simvastatin | Simvastatin | 145 | 11,045 | $1,561.52 | 39 |
| Buspirone Hcl | Buspirone Hcl | 139 | 4,166 | $2,302.72 | 16 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 132 | 10,644 | $1,957.40 | 37 |
| Farxiga | Dapagliflozin Propanediol | 131 | 5,910 | $106,072.63 | 23 |
| Metformin Hcl | Metformin Hcl | 130 | 8,792 | $1,422.38 | 37 |
| Escitalopram Oxalate | Escitalopram Oxalate | 93 | 3,379 | $1,529.72 | 15 |
| Sertraline Hcl | Sertraline Hcl | 92 | 3,163 | $1,949.33 | 16 |
(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
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: 207RE0101X
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20051212000718
OK
9032139829
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, CMS release of October 2, 2026
St Marys Physician Associates Llc
310 E Owen K Garriott Rd, Enid, OK 737015712
Phone: 5802493795
St Marys Physician Associates Llc
314 E Owen K Garriott Rd, Enid, OK 737015712
Phone: 5802493795
St Marys Physician Associates Llc
330 S 5th St, Enid, OK 737015863
Phone: 5802493898
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 - Pulmonary Disease
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 615 E OKLAHOMA AVE STE 208, ENID, OK 737015952 (Tel: 5802423090)
Registered at PO BOX 3046, MALVERN, PA 193550746 (Tel: 5802423090)
Recorded as DANIEL WASHBURN, MD
Internal Medicine (license number reported to NPPES: OK 11337)
NPI status registered as active in NPPES database
Registered at 615 E OKLAHOMA AVE STE 208, ENID, OK 737015952 (Tel: 5802423090)
Registered at PO BOX 3046, MALVERN, PA 193550746 (Tel: (580) 242-3090)
Recorded as DANIEL WASHBURN, MD
Internal Medicine (license number reported to NPPES: OK 11337)
Internal Medicine (license number reported to NPPES: OK 11337)
NPI status registered as active in NPPES database
Registered at 615 E OKLAHOMA AVE, STE 208, ENID, OK 737015951 (Tel: 5802423090)
Registered at PO BOX 844737, DALLAS, TX 752844737 (Tel: 5802242309)
Recorded as DANIEL WASHBURN, MD
Internal Medicine (license number reported to NPPES: OK 11337)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Enid
- Dr. Robert Breckenridge, DO
- Dr. David Shepherd, MD
- Dr. Dennis Mcintyre, MD
- Dr. Yasir Usman, MD
- Dr. Christopher Shearer, DO
More public profiles in Oklahoma
Directory navigation, in NPI number order.
- Mustafa Atar, MD Internal Medicine - Cardiovascular Disease ยท Oklahoma City
- Itivrita Goyal, MD Internal Medicine - Endocrinology, Diabetes & Metabolism ยท Oklahoma City
- Kathryn Bachman, PA-C Physician Assistant ยท Oklahoma City
- Taylor Eves Physician Assistant ยท Tulsa
- Joan Coats, PA-C Physician Assistant ยท Tulsa
- Jennifer Schmitt, CRNA Nurse Anesthetist, Certified Registered ยท Oklahoma City
- Melissa Duke, APRN, CNP Nurse Practitioner ยท Oklahoma City
- Tasha Lunsford, APRN, CNP Nurse Practitioner - Family ยท Nowata
- Weyman Lam Allergy & Immunology ยท Tulsa
- Marshall Shaw, MD Urology ยท Oklahoma City
- Shanda Holenda Case Manager/Care Coordinator ยท Grove
- Kevin Madden, CRNA Nurse Anesthetist, Certified Registered ยท Tulsa
Mailing Address
Po Box 3046
Malvern, PA 193550746
Phone: 5802423090