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Mark Ratner, MD
NPI 1568544112 · Urology Physician · Rockville, MD
Mark Ratner, MD is a Urology Physician provider in Rockville, MD (NPI 1568544112).
Provider details
- NPI number
- 1568544112
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0033617 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
9420 Key West Ave
Suite 420
Rockville, MD 20850
Phone: (301) 258-1919
Fax: (301) 258-9180
Street-level locationGet directions
Mailing address
25 Crossroads Drive
Owings Mills, MD 21117
Registry dates
- Enumerated
- 2006-10-20
- Last updated
- 2017-09-28
Frequently asked questions
- What is Mark Ratner's NPI number?
- Mark Ratner's National Provider Identifier (NPI) is 1568544112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ratner's specialty?
- Mark Ratner is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Ratner located?
- Mark Ratner's practice location on file with NPPES is 9420 Key West Ave, Rockville, MD 20850.
- What is Mark Ratner's phone number?
- The practice phone number listed in the NPPES registry for Mark Ratner is (301) 258-1919.
- Is Mark Ratner's NPI active?
- Yes — Mark Ratner's NPI (1568544112) is active in the NPPES registry as of the last update on 2017-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.