William Rollow, MD
NPI 1790929719 · Family Medicine Physician · Ellicott City, MD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Rollow, MD is a Family Medicine Physician provider in Ellicott City, MD (NPI 1790929719).
Provider details
- NPI number
- 1790929719
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0058165 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
365 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 188 | $181 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 131 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 17 | $95 |
| 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 OrG2212 | 16 | $33 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 13 | $229 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Liothyronine Sodium | 80 | 19 |
| Oxycodone Hcl | 43 | — |
| Levothyroxine Sodium | 35 | — |
| Gabapentin | 30 | — |
| Doxycycline Hyclate | 29 | — |
| Carisoprodol | 27 | — |
| Semaglutidebrand: Ozempic | 25 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-04-21
- Last updated
- 2024-06-24
- Certified
- 2024-06-24
Frequently asked questions
- What is William Rollow's NPI number?
- William Rollow's National Provider Identifier (NPI) is 1790929719, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Rollow's specialty?
- William Rollow is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Rollow located?
- William Rollow's practice location on file with NPPES is 9501 Old Annapolis Rd Ste 205, Ellicott City, MD 21042-6336.
- What is William Rollow's phone number?
- The practice phone number listed in the NPPES registry for William Rollow is (410) 648-2555.
- Does William Rollow accept Medicare?
- William Rollow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Rollow's NPI active?
- Yes — William Rollow's NPI (1790929719) is active in the NPPES registry as of the last update on 2024-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.