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Edit this profileAt a glance
- 9901 Medical Center Dr, Rockville, MD 20850
About Leonard Chornock
Listed in the NPI registry as a physician assistant — medical, Leonard Chornock practices in Rockville, MD. According to Medicare claims data, Leonard cared for 121 Medicare patients across 122 services. The services billed most often include emergency department visit with moderate level of medical decision making, emergency department visit with high level of medical decision making, and emergency department visit with low level of medical decision making. NPI 1811912942 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (301) 279-6550
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
9901 MEDICAL CENTER DR
Rockville, MD 20850
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Medical generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Digestive
Most searched conditions
Allergies
Blood
Bone and joint
Digestive health
Ear, Nose & Throat
Endocrine
Eye Care
Foot and ankle
General Health
Hair and scalp
Headache and brain
Heart & Circulation
Hormones
Infections
Injury
Men's Health
Mental Health
Metabolic
Nerve conditions
Neurology
Pain
Respiratory
Sexual Health
Skin
Skin cancer
Skin conditions
Sleep
Women's Health
Procedures & services
Diagnostic Tests
- COVID-19 Rapid Test
- Rapid Flu Swab
- Urine Pregnancy Test
- Mono Rapid Test
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
Exams
Most searched procedures
Allergies
Counseling
Dermatology
Ear, Nose & Throat
Evaluations
General Care
Heart & Circulation
Heart health
Hormones
Injections
Injury Care
Lab tests
Mental Health
Metabolic
Minor surgery
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
Prevention
Respiratory
Screening
Skin procedures
Treatments
Virtual care
Women's Health
Women's health
Procedures Most Often Billed to Medicare
122 services · 121 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
67 | More often than most peers in Physician Assistant — Medical |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
37 | As often as other peers in Physician Assistant — Medical |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
18 | As often as other peers in Physician Assistant — Medical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 6 related providers in 1 group
Common questions
What kind of doctor is Leonard Chornock?
Leonard Chornock is a physician assistant in Rockville, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Medical”.
NPI registry
What is Leonard Chornock's address?
Leonard Chornock is listed at 9901 Medical Center Dr, Rockville, MD 20850. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Leonard Chornock?
The number on file is (301) 279-6550. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Leonard Chornock's NPI number?
Leonard Chornock's National Provider Identifier is 1811912942. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Leonard Chornock been practicing?
Leonard Chornock has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Leonard Chornock perform?
According to Medicare billing data, Leonard Chornock the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Leonard Chornock confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Leonard Chornock. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.