2026 NPPES data Family Medicine Physician NPI 1134113285 MD
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PARIMAL DESAI, MD

Family Medicine Physician in MANASSAS, 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
5K
Medicare Part D claims · 435 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$236.55
13 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

PARIMAL DESAI, MD filed 5,050 Medicare Part D claims in 2023 as a Family Medicine Physician in MANASSAS, Virginia, prescribing 89% generic.

5K
Part D claims, 2023
89%
generic prescribing
$236.55
industry payments (Sunshine Act)

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.

PARIMAL DESAI, MD's Medicare Part D volume vs every U.S. prescriber

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

5,050 Top 6% higher than 94% 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%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

PARIMAL DESAI, 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 PARIMAL DESAI, MD?

Quality data not reported

NPI registry status

Active

Issued 09/06/2005

NPI 1134113285

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

5,050 48% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Virginia

How Family Medicine Physician compares to other specialties among Virginia providers

Virginia providers

Family Medicine Physician share within Virginia

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family 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).

PARIMAL DESAI, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 9001 DIGGES RD, MANASSAS, VA, 20110, with a listed phone of (703) 369-5000. NPI 1134113285 was issued on 09/06/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DESAI 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 5,050 prescription claims written by this provider, covering 435 Medicare beneficiaries and totaling roughly $535K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 0.3%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

9001 DIGGES RD
MANASSAS, VA 20110

Provider Details

NPI 1134113285
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 09/06/2005

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for PARIMAL DESAI, MD. Source: openpaymentsdata.cms.gov.

Total received

$237

Largest payer

Novo Nordisk Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

PARIMAL DESAI, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 5,050 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.

5,050
Total Claims
$535K
Total Drug Cost
435
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,649
Total Day Supply
337,346
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$423K
Generic Drug Cost
$110K
Opioid Claims
13 (0.3% rate)
Antibiotic Claims
222

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.22
Gender Split
53% female / 47% male
Age Distribution
<65: 55, 65-74: 211, 75-84: 129, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

What PARIMAL DESAI, 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
Levothyroxine Sodium
212
Atorvastatin Calcium
200
Metformin Hcl
181
Rosuvastatin Calcium
172
Losartan Potassium
171
Lisinopril
168
Tamsulosin Hcl
142
Metoprolol Succinate
139
Pantoprazole Sodium
134
Amlodipine Besylate
128

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

Family Medicine Physician Overview

How PARIMAL DESAI, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

PARIMAL DESAI, MD's 5,050 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Virginia

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

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

Frequently Asked Questions

What is PARIMAL DESAI, MD's specialty?
PARIMAL DESAI, MD specializes in Family Medicine Physician and practices in MANASSAS, Virginia. Credentials: MD.
How much does PARIMAL DESAI, MD prescribe under Medicare Part D?
In 2023, PARIMAL DESAI, MD wrote 5,050 Medicare Part D claims totaling $535K in drug costs for 435 beneficiaries.
Where is PARIMAL DESAI, MD located?
PARIMAL DESAI, MD is located at 9001 DIGGES RD, MANASSAS, VA, 20110. Phone: (703) 369-5000.
What is PARIMAL DESAI, MD's NPI number?
PARIMAL DESAI, MD's National Provider Identifier (NPI) is 1134113285, issued on 09/06/2005.
Does PARIMAL DESAI, MD prescribe more brand-name or generic drugs?
PARIMAL DESAI, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $423K in brand drug costs.
Does PARIMAL DESAI, MD prescribe opioids?
Yes, PARIMAL DESAI, MD had 13 opioid claims in 2023 with an opioid prescribing rate of 0.3%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does PARIMAL DESAI, MD prescribe most often?
Based on 2023 Medicare Part D data, PARIMAL DESAI, MD's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PARIMAL DESAI, MD accept Medicare?
PARIMAL DESAI, MD appears in CMS Medicare data with 5,050 Part D claims and 435 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PARIMAL DESAI, MD's credentials?
PARIMAL DESAI, MD's NPI is 1134113285 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