2026 NPPES data Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician NPI 1841225133 M.D.
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DANIEL GRUBER, M.D.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in BETHESDA, Maryland. 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
255
Medicare Part D claims · 115 beneficiaries · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician avg: 611
Generic prescribing
63%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.3962/100
▼ 9 pts below national avg 83.1 · [object Object]
Industry payments
$15.1K
32 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

DANIEL GRUBER, M.D. reported a CMS MIPS final score of 74.3962/100 — below the 83.1 national average — and filed 255 Medicare Part D claims in 2023.

74.3962/100
MIPS score · -9 vs avg
255
Part D claims, 2023
63%
generic prescribing
Likely
board-certified (heuristic)

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.

DANIEL GRUBER, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

74 12th percentile higher than 12% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

DANIEL GRUBER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about DANIEL GRUBER, M.D.?

Below national average

NPI registry status

Active

Issued 07/12/2006

NPI 1841225133

Primary specialty

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician

Niche

568 US NPIs in this specialty

Medicare Part D claims

255 58% vs specialty avg

2023 prescription claims

Specialty avg: 611

MIPS final score

74.3962/100 8.703800000000001% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Maryland

How Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician compares to other specialties among Maryland providers

Maryland providers

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within Maryland

1. Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within Maryland

Medicare quality performance — MIPS

DANIEL GRUBER, M.D.'s 2023 MIPS final score plotted against the Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician national average

Below national average
MIPS Final Score
74.3962/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician) — 74.3962/100 vs national avg 83.1

0%100%National avg83%74.4%
MIPS final score (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician) — 74.3962/100 vs national avg 83.1

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).

DANIEL GRUBER, M.D. appears in the CMS NPPES registry as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider holding M.D. credentials at 8901 WISCONSIN AVE, BETHESDA, MD, 20889, with a listed phone of (301) 400-2685. NPI 1841225133 was issued on 07/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRUBER 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 255 prescription claims written by this provider, covering 115 Medicare beneficiaries and totaling roughly $68K in drug spend, split 37% brand-name and 63% generic by claim count, with an opioid prescribing rate of 7.8%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.3962/100 for the 2023 performance year (Quality 64.7185, Cost 52.4354), compared with the national average of 83.1.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician is a narrow specialty nationwide, with 568 enrolled providers across 49 states and an average of 611 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

8901 WISCONSIN AVE
BETHESDA, MD 20889

Provider Details

NPI 1841225133
Specialty Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
Credentials M.D.
Gender Male
NPI Issued 07/12/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

74.3962
Final Score
Avg: 83.1
64.7185
Quality
52.4354
Cost
97
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where DANIEL GRUBER, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

JOHNS HOPKINS UNIVERSITY
WASHINGTON, DC
JOHNS HOPKINS UNIVERSITY
WASHINGTON, DC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 DANIEL GRUBER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$15.1K

Largest payer

ABBVIE 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 · Above average

DANIEL GRUBER, M.D. — brand share 37.0%
Specialty average (est.)

37% brand-name claims vs 63% generic, on 255 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.

255
Total Claims
$68K
Total Drug Cost
115
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
422
Total Day Supply
11,088
Brand vs Generic
37% brand / 63% generic
Brand Drug Cost
$56K
Generic Drug Cost
$11K
Opioid Claims
20 (7.8% rate)
Antibiotic Claims
37

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
1.01
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

What DANIEL GRUBER, 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
Estradiol
102
Myrbetriq
Mirabegron
51
Gemtesa
Vibegron
24
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
18
Oxycodone Hcl
17
Nitrofurantoin
Nitrofurantoin Macrocrystal
12

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

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Overview

How DANIEL GRUBER, M.D. fits within the Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician landscape nationally.

568
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in US
49
States with Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
611
Avg Claims per Provider

DANIEL GRUBER, M.D.'s 255 claims are below the specialty average of 611.

Nearby Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in Maryland

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

Compare Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DANIEL GRUBER, M.D.'s specialty?
DANIEL GRUBER, M.D. specializes in Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician and practices in BETHESDA, Maryland. Credentials: M.D..
How much does DANIEL GRUBER, M.D. prescribe under Medicare Part D?
In 2023, DANIEL GRUBER, M.D. wrote 255 Medicare Part D claims totaling $68K in drug costs for 115 beneficiaries.
What is DANIEL GRUBER, M.D.'s Medicare quality score?
DANIEL GRUBER, M.D. has a CMS MIPS Final Score of 74.3962/100 (Quality: 64.7185, Cost: 52.4354). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DANIEL GRUBER, M.D. located?
DANIEL GRUBER, M.D. is located at 8901 WISCONSIN AVE, BETHESDA, MD, 20889. Phone: (301) 400-2685.
What is DANIEL GRUBER, M.D.'s NPI number?
DANIEL GRUBER, M.D.'s National Provider Identifier (NPI) is 1841225133, issued on 07/12/2006.
Does DANIEL GRUBER, M.D. prescribe more brand-name or generic drugs?
DANIEL GRUBER, M.D.'s prescribing is 37% brand-name and 63% generic drugs by claim count, with $56K in brand drug costs.
Does DANIEL GRUBER, M.D. prescribe opioids?
Yes, DANIEL GRUBER, M.D. had 20 opioid claims in 2023 with an opioid prescribing rate of 7.8%.
How many Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers are there in the US?
There are 568 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers across 49 states in the US. The average Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider writes 611 Medicare Part D claims per year.
What drugs does DANIEL GRUBER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DANIEL GRUBER, M.D.'s most frequently prescribed drugs include Estradiol, Myrbetriq, Gemtesa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DANIEL GRUBER, M.D. accept Medicare?
DANIEL GRUBER, M.D. appears in CMS Medicare data with 255 Part D claims and 115 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DANIEL GRUBER, M.D.'s credentials?
DANIEL GRUBER, M.D.'s NPI is 1841225133 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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