2026 NPPES data Internal Medicine Physician NPI 1124132873 MD
Verify on CMS →

TESSA CHOLMONDELEY, MD

Internal Medicine Physician in RESTON, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 94 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

TESSA CHOLMONDELEY, MD filed 1,579 Medicare Part D claims in 2023 as a Internal Medicine Physician in RESTON, Virginia, prescribing 90% generic.

2K
Part D claims, 2023
90%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

TESSA CHOLMONDELEY, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,579 Top 19% higher than 81% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

TESSA CHOLMONDELEY, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about TESSA CHOLMONDELEY, MD?

Quality data not reported

NPI registry status

Active

Issued 08/19/2006

NPI 1124132873

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,579 42% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Virginia

How Internal Medicine Physician compares to other specialties among Virginia providers

Virginia providers

Internal Medicine Physician share within Virginia

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Virginia

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

TESSA CHOLMONDELEY, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 1830 TOWN CENTER DR STE 207, RESTON, VA, 20190, with a listed phone of (703) 435-2227. NPI 1124132873 was issued on 08/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHOLMONDELEY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,579 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $146K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 1.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1830 TOWN CENTER DR STE 207
RESTON, VA 20190

Provider Details

NPI 1124132873
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 08/19/2006

Brand vs generic prescribing mix · Typical

TESSA CHOLMONDELEY, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 1,579 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,579
Total Claims
$146K
Total Drug Cost
94
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,688
Total Day Supply
107,493
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$111K
Generic Drug Cost
$34K
Opioid Claims
25 (1.6% rate)
Antibiotic Claims
34

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
0.89
Gender Split
83% female / 17% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What TESSA CHOLMONDELEY, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Amlodipine Besylate
101
Levothyroxine Sodium
99
Atorvastatin Calcium
96
Rosuvastatin Calcium
83
Metoprolol Succinate
54
Lisinopril
48
Losartan Potassium
45
Simvastatin
45
Ibandronate Sodium
40
Metformin Hcl Er
Metformin Hcl
39

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How TESSA CHOLMONDELEY, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

TESSA CHOLMONDELEY, MD's 1,579 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as CHOLMONDELEY.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TESSA CHOLMONDELEY, MD's specialty?
TESSA CHOLMONDELEY, MD specializes in Internal Medicine Physician and practices in RESTON, Virginia. Credentials: MD.
How much does TESSA CHOLMONDELEY, MD prescribe under Medicare Part D?
In 2023, TESSA CHOLMONDELEY, MD wrote 1,579 Medicare Part D claims totaling $146K in drug costs for 94 beneficiaries.
Where is TESSA CHOLMONDELEY, MD located?
TESSA CHOLMONDELEY, MD is located at 1830 TOWN CENTER DR STE 207, RESTON, VA, 20190. Phone: (703) 435-2227.
What is TESSA CHOLMONDELEY, MD's NPI number?
TESSA CHOLMONDELEY, MD's National Provider Identifier (NPI) is 1124132873, issued on 08/19/2006.
Does TESSA CHOLMONDELEY, MD prescribe more brand-name or generic drugs?
TESSA CHOLMONDELEY, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $111K in brand drug costs.
Does TESSA CHOLMONDELEY, MD prescribe opioids?
Yes, TESSA CHOLMONDELEY, MD had 25 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does TESSA CHOLMONDELEY, MD prescribe most often?
Based on 2023 Medicare Part D data, TESSA CHOLMONDELEY, MD's most frequently prescribed drugs include Amlodipine Besylate, Levothyroxine Sodium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TESSA CHOLMONDELEY, MD accept Medicare?
TESSA CHOLMONDELEY, MD appears in CMS Medicare data with 1,579 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TESSA CHOLMONDELEY, MD's credentials?
TESSA CHOLMONDELEY, MD's NPI is 1124132873 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology