DR. DANIEL DAVID GRUBER M.D.
NPI 1841225133
Obstetrics & Gynecology - Urogynecology and Reconstructive Pelvic Surgery in Bethesda, MD

Q: What is Daniel Gruber's NPI number?

The NPI number for Daniel Gruber is 1841225133. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Q: What is Daniel Gruber's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Urogynecology and Reconstructive Pelvic Surgery, with taxonomy code 207VF0040X.

Q: When was this NPI record last updated?

The NPPES record for Daniel Gruber was last updated on October 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 12, 2006PECOS Enrolled

74.39/100

CMS Quality Rating

8901 WISCONSIN AVE, BETHESDA, MD 20889(301) 400-2685 Get Directions Write a Review

NPPES record last updated: October 6, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Daniel David Gruber M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DANIEL DAVID GRUBER M.D. (NPI 1841225133) is an individual urogynecology and reconstructive pelvic surgery provider in Bethesda, Maryland, licensed in District Of Columbia (MD039970) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (2002).

NPPES Registry Identity

NPI1841225133

Entity TypeIndividualMale

Primary Taxonomy207VF0040X

Provider Legal NameDR. DANIEL DAVID GRUBERCredential: M.D.

Location Address8901 WISCONSIN AVEBethesda, MD 20889-0004

Mailing Address5255 Loughboro Rd NwWashington, DC 20016-2633 · (301) 400-2685

Phone(301) 400-2685

Sole ProprietorNo

Medical School CMSCreighton University School Of MedicineGraduated 2002

Enumeration DateJuly 12, 2006

Last NPPES UpdateOctober 6, 2020

NPPES CertifiedOctober 6, 2020

✔ NPI 1841225133 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Urogynecology and Reconstructive Pelvic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207VF0040X

Licenses✔ Licensed in DC · MD039970✔ Licensed in MD · D88462

Definition

A subspecialist in Urogynecology and Reconstructive Pelvic Surgery is a physician in Urology or Obstetrics and Gynecology who, by virtue of education and training, is prepared to provide consultation and comprehensive management of women with complex benign pelvic conditions, lower urinary tract disorders, and pelvic floor dysfunction. Comprehensive management includes those diagnostic and therapeutic procedures necessary for the total care of the patient with these conditions and complications resulting from them.

Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License A86941 (CA)

8901 WISCONSIN AVE, Bethesda, MD 20889

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Daniel David Gruber M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID749428894

PECOS Enrollment IDI20201012002507

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Daniel Gruber reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Johns Hopkins University

0.8 mi

Neurological Surgery

8600 OLD GEORGETOWN RD
Bethesda, MD 20814

Reassigned Medicare billing, Maryland enrollment
4,483 clinicians in this Medicare group

NPI 1578569240 (410) 955-5000

Johns Hopkins University

8.3 mi

Multi-Specialty

4102 WILSON BLVD
Arlington, VA 22203

Reassigned Medicare billing, District of Columbia enrollment
29 clinicians in this Medicare group

NPI 1790504066 (703) 462-1777

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 16

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, onabotulinumtoxina, 1 unit J0585

Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.

3,950 services32 patients

Insertion of temporary bladder tube 51701

This procedure involves placing a small tube into your lower abdomen to help drain urine from your bladder. It's a temporary measure, often used when normal urination is not possible. The tube remains in place until you can urinate on your own again.

195 services191 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

84 services84 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

64 services62 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

51 services51 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

42 services41 patients

Exam with injections of chemical for destruction of bladder using an endoscope 52287

This procedure involves the use of a thin, flexible tube with a light (endoscope) for internal examination. A chemical is then injected to help eliminate specific issues in the bladder. It's a standard and safe process.

38 services34 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

27 services21 patients

Creation of sling around urethra in female to control leakage 57288

This procedure involves creating a supportive loop around a tube in your lower body that carries liquid waste. This helps manage any unwanted leakage, providing you with better control and comfort.

25 services25 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

25 services23 patients

Surgical repair of vaginal defect using an endoscope 57425

This procedure involves the use of a special instrument, an endoscope, to help fix an issue within your body. It's a minimally invasive method, meaning less discomfort and quicker recovery compared to traditional surgery.

19 services19 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

14 services14 patients

Insertion of device into abdomen with pressure and urine flow rate study 51797

This procedure involves placing a small device into your abdomen to monitor pressure and urine flow rates. It helps in understanding how well your body is processing and eliminating liquid waste. It's a safe procedure, typically performed under local anesthesia.

14 services14 patients

Repair of herniated rectum into vaginal wall 57250

This procedure involves correcting a physical condition where part of the rectum bulges into the vaginal area. It's done by repositioning the rectum and strengthening the tissue between the two areas to prevent recurrence.

14 services14 patients

Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings 51784

This procedure involves the use of non-invasive devices to record the electrical activity of muscles at specific body openings. It's helpful in understanding muscle function and can assist in diagnosing certain conditions.

13 services13 patients

Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies 51729

This procedure helps to measure the pressure inside your bladder while passing fluid. It checks how well your bladder and the tube that carries fluid from your bladder are working. It's important for diagnosing issues with fluid flow and storage.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20889 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.39/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

64.71

Promoting Interoperability

Improvement Activities

Cost

52.43

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. TAMMERA NELSON

Pharmacist

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4497

DAWOOD TAFTI M.D.

Radiology (Diagnostic Radiology)

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 319-8373

DR. ASHLEY BEE BOZZAY

Student in an Organized Health Care Education/Training Program

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-8588

DR. ADAM JOSEPH MAIER DO

Internal Medicine (Infectious Disease)

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4000

SIMAL RUHISHTA ALI DO

General Practice

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4900

DR. JACOB L FRIESEN M.D.

Psychiatry & Neurology (Psychiatry)

8901 WISCONSIN AVE, WRNMMC, NICOE, BUILDING 51
BETHESDA, MD 20889

Montgomery County (301) 319-3772

MS. CARLA PATRICE ALEXIS P.T.

Physical Therapist

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4880

DR. ANN TALBOT SCHWARTZ MD

Pediatrics

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4941

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Daniel Gruber's NPI number?

The NPI number for Daniel Gruber is 1841225133. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Daniel Gruber located?

Daniel Gruber practices at 8901 Wisconsin Ave, Bethesda, MD 20889. The listed phone number is (301) 400-2685.

What is Daniel Gruber's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Urogynecology and Reconstructive Pelvic Surgery, with taxonomy code 207VF0040X.

Is Daniel Gruber enrolled in Medicare?

Yes. Daniel Gruber is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Daniel Gruber's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Gruber reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Bethesda, MD) and Johns Hopkins University (Arlington, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Daniel Gruber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Daniel Gruber was last updated on October 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.