AntibodiesComplement Pathway, AlternativeCytotoxicity, Immunologic
Dr. Christopher B. Ish, MD
NPI1538263850PAC ID5799722708
- Medicare services, 2024
- 876
- Medicare patients, 2024
- 200
- Part D claims, 2024
- 2,897
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 7671 Quarterfield Rd, Glen Burnie, MD 21061
- Practice phone
- Call (410) 571-2946
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bay Surgery Centers - Glen Burnie
Glen Burnie, Maryland
Find Dr. Ish's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Christopher B. Ish is an internist in Glen Burnie, Maryland
Dr. Ish practices at Bay Surgery Centers - Glen Burnie in Glen Burnie, Maryland.
Dr. Ish's NPI, 1538263850, was assigned on September 8, 2006. Dr. Ish graduated from Rutgers New Jersey Medical School in 1994. Dr. Ish holds Maryland license D53283.
NPI and contact details
- NPI
- 1538263850NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799722708
- NPI enumeration date
- September 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (410) 571-2946
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher B. Ish practices at Bay Surgery Centers - Glen Burnie in Glen Burnie, Maryland
Dr. Ish's primary practice is Bay Surgery Centers - Glen Burnie, at 7671 Quarterfield Rd, Glen Burnie, MD 21061 in Anne Arundel County. The practice phone is (410) 571-2946.
- Bay Surgery Centers - Glen Burnie7671 Quarterfield Rd, Glen Burnie, MD 21061 · Anne Arundel CountyPhone(410) 571-2946
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher B. Ish is affiliated with 4 sites of care and 1 medical group
Dr. Ish's primary practice is Bay Surgery Centers - Glen Burnie in Glen Burnie, Maryland. Dr. Ish is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins Community Physicians. Dmand AI also links Dr. Ish to 1 more group practice or clinic and 1 home health agency, each named with a free account.
Bay Surgery Centers - Glen BurniePrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Christopher B. Ish's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ish practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bay Surgery Centers - Glen Burnie | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher B. Ish is one of 3,320 internists in Maryland
Internal medicine is Dr. Ish's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ish is board certified in internal medicine by the American Board of Internal Medicine. Dr. Ish is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Clinical focus
Dmand AI lists acid reflux, alzheimer's disease, aneurysm, anxiety, arthritis, asthma, atrial fibrillation and flutter and cerebrovascular disease among the conditions Dr. Ish treats.
Internists near Dr. Ish
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Christopher B. Ish billed Medicare for 876 services in 2024
CMS data shows 876 Medicare services from Dr. Ish across 10 procedure codes in 2024, for 200 Medicare patients. Medicare paid $47,316 for them. Every service was in an office.
Medicare services, 2024876
Medicare patients200
Paid by Medicare$47,316
Procedure codes10
Dr. Ish's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3192024: 3016%
- Other services
- 2023: 1972024: 22313%
- Tests and treatments
- 2023: 1442024: 1536%
- Surgery
- 2023: 1022024: 12725%
- Lab and pathology
- 2023: 1382024: 7248%
Dr. Ish compared with the Maryland median for internists, 2024
- Dr. Ish
- Maryland median
- Medicare services
- 876vs 65634% above
- Medicare patients
- 200vs 25120% below
- Part D claims
- 2,369vs 3097.7 times
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Ish's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Ish?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ish and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher B. Ish treated 200 Medicare patients in 2024, average age 72
CMS counts 200 Medicare patients who saw Dr. Ish in 2024. The largest group is 65 to 74, with 104 patients. 72% of them have high cholesterol, and 66% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ish's median patient age at 64, with 33% women.
Medicare patients, 2024200
Average age72
Average risk score1.09
Also on Medicaid9%
Dr. Ish's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ish's Medicare patients by sex, 2024
- Women8342%
- Men11759%
Chronic conditions among Dr. Ish's Medicare patients, 2024
- High cholesterol72%
- High blood pressure66%
- Arthritis41%
- Diabetes37%
- Mood disorders27%
- Depression25%
- Chronic kidney disease22%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ish's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher B. Ish wrote 2,897 Medicare Part D claims in 2024
In 2024, Dr. Ish wrote 2,897 Medicare Part D claims for 260 patients. 89% of them were for generic drugs. CMS names the drug for 2,369 of them, across 78 drugs with 11 or more claims each, at $203,747 in total drug cost. In 2023, CMS named 2,162 claims across 71 drugs.
Part D claims, 20242,897
Drugs named by CMS78
Total drug cost$203,747
Part D patients260
Dr. Ish's Part D claims by kind of drug, 2024
- Generic2,584 claims89%
- Brand-name293 claims10%
- Other20 claims1%
Dr. Ish's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ish's Part D claims, 2024
- Opioids3%92 of 2,897 claims
- Antibiotics2%59 of 2,897 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1622024: 2,36910%
Drugs named by CMS: 78 in 2024, 71 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Christopher B. Ish offers telehealth to Medicare patients
Dr. Ish accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ish as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Christopher B. Ish has 1 publication on record
Dmand AI links 1 paper to Dr. Ish.
Papers1
Recent publications by Dr. Ish
See who Dr. Ish researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ish works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christopher B. Ish has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Ish, most recently Compassionate Doctors in 2015.
Awards and honors for Dr. Ish
- 2015
- Compassionate Doctors
- 2014
- NCQA PCMH
- Undated
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Christopher B. Ish graduated from Rutgers New Jersey Medical School
Dr. Ish graduated from Rutgers New Jersey Medical School in 1994.
- Medical school
- Board certified in internal medicine
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Christopher B. Ish accepts plans from 5 insurance carriers
Dr. Ish is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Ish accepts, by number of carriers
- HMO3
- Medicare3
- POS3
- EPO2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Christopher B. Ish's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Christopher B. Ish
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Christopher B. Ish's NPI number?
Dr. Christopher B. Ish's NPI number is 1538263850. It was assigned on September 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher B. Ish?
Dr. Christopher B. Ish is an internist in Glen Burnie, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Christopher B. Ish practice?
Dr. Ish practices at 7671 Quarterfield Rd, Glen Burnie, MD 21061. Dr. Ish's primary practice is Bay Surgery Centers - Glen Burnie in Glen Burnie, Maryland. Dmand AI also links Dr. Ish to 1 group practice or clinic and 1 home health agency.
What is Dr. Christopher B. Ish's office phone number?
The practice phone on file for Dr. Ish is (410) 571-2946.
What is Dr. Christopher B. Ish's medical license number?
Dr. Ish holds Maryland license D53283.
Which hospitals is Dr. Christopher B. Ish affiliated with?
Dr. Ish is affiliated with The Johns Hopkins Hospital.
What medical group is Dr. Christopher B. Ish part of?
Dr. Ish is linked to Johns Hopkins Community Physicians.
Does Dr. Christopher B. Ish accept Medicare?
Yes. CMS data shows Dr. Ish billed Medicare for 876 services in 2024, and Dr. Ish accepts Medicare assignment.
Does Dr. Christopher B. Ish offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ish as offering telehealth services.
How many Medicare patients does Dr. Christopher B. Ish see?
CMS counts 200 Medicare patients who saw Dr. Ish in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
Is Dr. Christopher B. Ish board certified?
Yes. Dr. Ish is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Christopher B. Ish bill to Medicare?
In 2024, Dr. Ish's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G0439).
Where did Dr. Christopher B. Ish go to medical school?
Dr. Ish graduated from Rutgers New Jersey Medical School in 1994.
What drugs does Dr. Christopher B. Ish prescribe most?
In 2024 Medicare Part D data, Dr. Ish's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
How long has Dr. Christopher B. Ish been practicing?
Dr. Ish graduated from medical school in 1994, 32 years ago.
Does Dr. Christopher B. Ish do research?
Dmand AI links 1 publication to Dr. Ish.
What insurance does Dr. Christopher B. Ish accept?
Dr. Ish is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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