Dr. Mark Elliott Walden , MD
General Practice • Raton, NM
190 Hospital Drive
Raton, NM 87740
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 March 19, 2007; this date does not establish years in practice.
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Published CMS data list 2,810 Medicare Part D prescriptions, including refills, in 2013.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2013. Published rows only; this is not a quality measure.
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Published Part D records, 2013:
- Levothyroxine Sodium — 178 prescription fills, including refills.
- Lisinopril — 169 prescription fills, including refills.
- Omeprazole — 158 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2013. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 82 records in the table · Guide: How to read Medicare Part D prescriber data
Practice Location & Contact Primary Location
190 Hospital Drive
Raton, NM 87740
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
3,948 standardized 30-day fills in 2013
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
$121,475 in 2013
The total cost of these prescriptions in 2013, 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, 2013.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
NPI first issued
2007
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.
Compared with the same specialty in Raton and New Mexico
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Walden are from 2013.
1 active clinicians are listed under General Practice with a practice address in Raton, NM (103 in New Mexico).
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 D prescriptions
CMS data for Part D prescriptions are available for 2013 only.
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30-day fills
CMS data for 30-day fills are available for 2013 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2013 only.
Sources: CMS Medicare Part D Prescribers (2013), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2013.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 178 | 8,185 | $1,709.35 | 67 |
| Lisinopril | Lisinopril | 169 | 7,005 | $1,265.21 | 59 |
| Omeprazole | Omeprazole | 158 | 6,393 | $3,369.53 | 57 |
| Amlodipine Besylate | Amlodipine Besylate | 133 | 5,103 | $1,163.99 | 46 |
| Simvastatin | Simvastatin | 127 | 6,096 | $1,537.68 | 50 |
| Metformin Hcl | Metformin Hcl | 88 | 4,063 | $802.34 | 32 |
| Furosemide | Furosemide | 87 | 3,330 | $420.97 | 35 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 82 | 2,382 | $1,425.33 | 36 |
| Atorvastatin Calcium | Atorvastatin Calcium | 70 | 3,210 | $3,964.89 | 24 |
| Potassium Chloride | Potassium Chloride | 69 | 2,640 | $1,630.06 | 25 |
| Metoprolol Tartrate | Metoprolol Tartrate | 62 | 2,463 | $425.52 | 19 |
| Lovastatin | Lovastatin | 60 | 3,120 | $1,436.90 | 19 |
| Warfarin Sodium | Warfarin Sodium | 55 | 2,130 | $590.01 | 15 |
| Carvedilol | Carvedilol | 48 | 1,800 | $507.66 | 17 |
| Losartan Potassium | Losartan Potassium | 46 | 2,400 | $1,375.58 | 19 |
| Meloxicam | Meloxicam | 45 | 2,310 | $509.57 | 21 |
| Gabapentin | Gabapentin | 44 | 1,800 | $1,959.75 | 17 |
| Chlorthalidone | Chlorthalidone | 41 | 1,230 | $609.85 | 11 |
| Ranitidine Hcl | Ranitidine Hcl | 39 | 1,663 | $1,314.77 | — |
| Glimepiride | Glimepiride | 36 | 1,980 | $393.56 | 12 |
| Glipizide | Glipizide | 36 | 1,874 | $413.37 | 16 |
| Atenolol | Atenolol | 35 | 1,380 | $167.00 | — |
| Diovan | Valsartan | 35 | 1,690 | $7,163.81 | 12 |
| Oxycodone Hcl | Oxycodone Hcl | 35 | 1,007 | $1,958.65 | 18 |
| Clonazepam | Clonazepam | 34 | 1,065 | $269.60 | 18 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2013; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant - Medical
Physician Assistant (Certified)
Nurse Practitioner - Family
Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated March 19, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Mailing Address
190 Hospital Dr
Raton, NM 877402002
Phone: 5754455563