2026 NPPES data Internal Medicine Physician NPI 1114007929 M.D.
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Towana Spriggs, M.D.

Internal Medicine Physician in Silver Spring, Maryland. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 172,858 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 136 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Towana Spriggs, M.D. filed 1,211 Medicare Part D claims in 2023 as a Internal Medicine Physician in Silver Spring, Maryland, prescribing 85% generic.

1K
Part D claims, 2023
85%
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.

Towana Spriggs, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,211 Top 22% higher than 78% 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%). This entry sits in this band. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 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)

Towana Spriggs, M.D. 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 Towana Spriggs, M.D.?

Quality data not reported

NPI registry status

Active

Issued 10/16/2006

NPI 1114007929

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,211 55% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Maryland

How Internal Medicine Physician compares to other specialties among Maryland providers

Maryland providers

Largest specialties in Maryland (% of in-state providers)

Behavior Technician — 14.1%Behavior Technician14.1%Clinical Social Worker — 5.5%Clinical Social Worker5.5%Student in an Organized Health Care Education/Training Program — 4.5%Student in an Organized Health Care Education/Training Program4.5%Home Health Aide — 4.4%Home Health Aide4.4%Physical Therapist — 3.9%Physical Therapist3.9%Pharmacist — 3.6%Pharmacist3.6%Internal Medicine Physician — 2.8%Internal Medicine Physician2.8%
Largest specialties in Maryland (% of in-state providers)

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).

Towana Spriggs, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 8935 COLESVILLE RD, Silver Spring, MD, 20910, with a listed phone of (301) 565-4609. NPI 1114007929 was issued on 10/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Spriggs 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 1,211 prescription claims written by this provider, covering 136 Medicare beneficiaries and totaling roughly $123K in drug spend, split 13% brand-name and 85% generic by claim count. 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

8935 COLESVILLE RD
Silver Spring, MD 20910

Provider Details

NPI 1114007929
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 10/16/2006

Brand vs generic prescribing mix · Typical

Towana Spriggs, M.D. — brand share 13.0%
Internal Medicine Physician average

13% brand-name claims vs 85% generic, on 1,211 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.

1,211
Total Claims
$123K
Total Drug Cost
136
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,809
Total Day Supply
83,177
Brand vs Generic
13% brand / 85% generic
Brand Drug Cost
$100K
Generic Drug Cost
$22K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
70.6 years
Avg HCC Risk Score
1.35
Gender Split
77% female / 23% male

Top Prescribed Drugs (Medicare Part D)

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

What Towana Spriggs, M.D. 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
Atorvastatin Calcium
92
Amlodipine Besylate
84
Metformin Hcl
77
Lisinopril
62
Hydrochlorothiazide
45
Pravastatin Sodium
45
Rosuvastatin Calcium
37
Telmisartan
35
Losartan Potassium
34
Simvastatin
33

* 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 Towana Spriggs, M.D. 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

Towana Spriggs, M.D.'s 1,211 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Maryland

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Maryland medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Towana Spriggs, M.D.'s specialty?
Towana Spriggs, M.D. specializes in Internal Medicine Physician and practices in Silver Spring, Maryland. Credentials: M.D..
How much does Towana Spriggs, M.D. prescribe under Medicare Part D?
In 2023, Towana Spriggs, M.D. wrote 1,211 Medicare Part D claims totaling $123K in drug costs for 136 beneficiaries.
Where is Towana Spriggs, M.D. located?
Towana Spriggs, M.D. is located at 8935 COLESVILLE RD, Silver Spring, MD, 20910. Phone: (301) 565-4609.
What is Towana Spriggs, M.D.'s NPI number?
Towana Spriggs, M.D.'s National Provider Identifier (NPI) is 1114007929, issued on 10/16/2006.
Does Towana Spriggs, M.D. prescribe more brand-name or generic drugs?
Towana Spriggs, M.D.'s prescribing is 13% brand-name and 85% generic drugs by claim count, with $100K in brand drug costs.
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 Towana Spriggs, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Towana Spriggs, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Towana Spriggs, M.D. accept Medicare?
Towana Spriggs, M.D. appears in CMS Medicare data with 1,211 Part D claims and 136 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Towana Spriggs, M.D.'s credentials?
Towana Spriggs, M.D.'s NPI is 1114007929 with credentials M.D.. 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

Compiled from official public sources by the PlainDoctor editorial team.